4 Pack Child Safety Window Restrictor Locks - Key-Operated UPVC Window Security Limiter with Cable, Anti-Fall & Anti-Burglary for Home/School (White)

• ​🔒【BS-Certified Child Safety】​: Restricts window openings to 10cm max (EN 16281:2021 compliant), preventing falls and deterring burglars with reinforced UPVC-metal construction
• ​🔑【Dual-Function Key Control】​: Includes 4 keys (1 per lock) for full-window access when needed; removable cable design allows ventilation while maintaining security
• ​🛠️【3-Minute Drill-Free Installation】​: Pre-attached screws fit UPVC/wood/aluminum windows; no tools required—just position, tighten, and secure.
• ​🏠【Multi-Surface Versatility】​: Works on sliding windows, French doors, cabinets, and drawers (track width <1cm); ideal for homes, schools, and offices
• ​🛡️【Weather-Resistant & Dog-Tested】​: Zinc alloy core + UV-stable coating resists rust, corrosion, and even pet damage—backed by 2-year warranty

【Key-Oriented Security Design】 4 unique keys included (1 per lock) for adult-controlled access Burglar-deterrent visible cable resists cutting tools Patented lock cylinder meets UK Lock Manufacturers Association Grade 4 security 【Universal Compatibility】 ▶︎ Fits UPVC/wood/metal windows (track height >0.4cm) ▶︎ No drilling—removes cleanly without damage ▶︎ Use on: Sliding windows, balcony doors, school cabinets 【Real User Scenarios】 Manchester mum Sarah: "Stopped my 3-year-old opening windows further after a neighbour’s child fell." London school: Locks medicine cabinets in classrooms. 【Trusted Quality】 Zinc alloy core + UPVC armor tested for 2 years under British weather conditions. Backed by replacement guarantee for manufacturing defects.