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- Sell My Stuff Window Security Chain Lock adjustable 18 cm 23 cm
Sell My Stuff Window Security Chain Lock adjustable 18 cm 23 cm
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Owned by a small family MoogCo Baby is a family-owned shop. Every order supports a real family who personally stands behind what we sell — thank you for shopping small. 💚
A window security chain lock for baby safety from Sell My Stuff. It has an aluminum alloy body with an electroplated zinc alloy finish. The chain adjusts up to 18 cm and the total chain length is 23 cm. Installs quickly with double sided adhesive and includes a unique lock core. Includes one chain lock.
Key Features
- Aluminum alloy body with electroplated zinc alloy finish
- Adjustable chain length up to 18 cm
- Total chain length 23 cm
- Includes unique lock core for added security
- Installs using double sided adhesive with no screws needed
- Includes one chain lock in the package
Details
- Brand: Sell My Stuff
- Materials: Aluminum alloy body with electroplated zinc alloy finish
- Adjustable length: Up to 18 cm
- Total chain length: 23 cm
- Installation: Double sided adhesive, no screws or specialized tools
- Contents: 1 * Chain Lock
- Includes: Unique lock core
How to Use and Care
- Install using the included double sided adhesive
- No screws or specialized tools required
Who It Is For
For parents and families with young children who want to limit window access. Suitable for homes with sliding, casement, or double hung windows.
Frequently Asked Questions
How do I install this window chain lock?
Install using the innovative double sided adhesive; no screws or specialized tools required.
What materials is the lock made from?
The lock has an aluminum alloy body with an electroplated zinc alloy finish.
What are the chain length measurements?
The chain is adjustable up to 18 cm and the total chain length is 23 cm.
What is included in the package?
The package includes one chain lock and a unique lock core.
All orders are processed and shipped within a maximum of 2 to 5 business days. Please note that this is an estimated timeline and does not constitute a guarantee, as national holidays and other external factors may impact final delivery and shipping times.
🚚 Free Shipping and Discount Clarification
For qualifying orders of $100 or more, the maximum available discount applied to your order is $30.


An aluminum alloy body with an electroplated zinc alloy finish resists wear and keeps the lock looking tidy over time. The solid materials give reassurance that the lock will hold up to everyday use around active toddlers.

Designed for sliding, casement, and double hung windows, the chain gives a controlled opening adults can use while preventing full access for children. Measure your frame and placement spot before installing to confirm fit.

A unique lock core prevents a child from simply pulling the chain free, so windows stay secured until an adult uses the key. Keep the key out of reach and store it in a consistent spot for quick access.
Picking the right chain lock comes down to fit, mounting surface, and how you plan to use it daily.
- Measure your window: Measure the gap you want to allow and compare it to the lock's adjustable length to ensure the chain limits the opening appropriately.
- Check mounting surface: Adhesive works best on clean, smooth surfaces like painted wood, glass, and finished metal; avoid rough or porous surfaces for secure bonding.
- Decide installation method: This lock installs with double sided adhesive for no tools, so choose an area you can commit to or consult a pro for permanent screw mounting.
- Confirm chain length: Look for an adjustable length that limits the opening enough for safety while still allowing adult access when needed.
- Plan placement height: Mount the lock where a child cannot reach, typically higher on the frame, while keeping it convenient for adult use with a key.
What window types does this work with?
It is compatible with sliding, casement, and double hung windows. Measure your frame and mounting area before installing to confirm proper fit.
How is the lock installed?
The lock uses a double sided adhesive for tool free installation, so no screws or specialized tools are required. Clean and dry the surface before applying the adhesive for best hold.
Is the lock childproof?
Yes, the keyed lock core prevents a child from disengaging the chain, but no product is a substitute for supervision, especially around open windows.
What are the chain measurements?
The chain is adjustable up to 18 centimeters, with a total cable length of 23 centimeters, giving a controlled opening while restricting full access.
What are the shipping and return policies?
We ship from a US warehouse, offer free US shipping on orders over $100, and accept returns within 30 days. Human customer support is available if you need help.
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"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
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"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
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"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
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"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
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"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"
