May stop cat from getting out of the window but certainly don't stop burgulars gaining entry, needing returned as the wrong type

I think you have a problem! 😆

Do they lock so that window can’t be opened ?

If you open window until restrictor clicks it can’t be opened anymore. You can’t close until you press the two release bottons together on side of restrictor. Restrictor can be unleashed to fully open window

Can it be attached to the top of the window? Does it have to go on the bottom?

Most of the very useful catches are attached to the bottom of windows. We have attached one to the top of a door without problem. The thing you need to bear in mind is that you would need to reach the top of the window to operate it safely.

Is this suitable for large square top hinged bottom opening upvc and would it stop the window self closing

Yes you can attach to the top, it probably would stop the window blowing closed.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Window Restrictor for UPVC Windows – Child Proofing & Cat Window Guard | Self-Adhesive No-Drill Window Lock | No Tools Required (White)

Product ID: 216711593

🔧No-drill, tool-free install

🧲3M VHB self-adhesive pads

🛡️30kg force resistance

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₩46048

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Secure your space, breathe freely, live worry-free!

SMART ADULT RELEASE - Dual-button unlock lets you open windows fully in seconds—safety meets convenience.
BREATHE EASY STAY SAFE - Limits window opening to 110mm for fresh airflow while preventing escapes.
UNMATCHED SAFETY LOCKDOWN - Withstands up to 30kg force to keep kids & pets secure without compromise.
UNIVERSAL WINDOW COMPATIBILITY - Fits UPVC, wood, aluminium & metal frames for seamless integration.
EFFORTLESS NO DRILL INSTALLATION - Powerful 3M adhesive pads mean zero damage, zero tools, zero hassle.

The BeeGo® Window Restrictor is a robust, self-adhesive safety lock designed for UPVC and most window types. It prevents dangerous openings by limiting window gaps to 110mm, ensuring child and pet safety while allowing ventilation. Easy to install with no drilling required, it withstands up to 30kg of force and features a quick-release mechanism for full window access when needed.

Specifications

ASIN	B087PLHXMB
Additional product features	fully removable, keyless, self adhesive
Batteries required	No
Best Sellers Rank	2,469 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Window Locks & Latches
Customer Reviews	4.4 4.4 out of 5 stars (5,233)
Date First Available	25 April 2020
Item Weight	130 g
Item model number	aoao
Material composition	abs plastic
Model Number	aoao
Number of items	1
Product Dimensions	21.5 x 8.1 x 2.4 cm; 130 g

Reviews

S**E

13.06.2025

M**Y

26.04.2026

A**N

7.04.2025

D**L

21.06.2025

C**R

13.07.2025

F**E

4.06.2025

J**H

19.01.2026

S**N

5.07.2022

D**A

5.04.2022

B**E

22.01.2021

C**N

14.05.2020

C**I

14.02.2022

T**Y

18.09.2023

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