ENHANCED WINDOW SECURITY: This window lock provides a strong barrier against forced entry, effectively deterring intruders while allowing you to keep windows slightly open for fresh air circulation and daily ventilation needs without sacrificing safety SIMPLE DIY INSTALLATION: Fitting this window restrictor requires no special tools or drilling, as it mounts securely using strong adhesive or screws depending on your frame type, with simple step-by-step guidance included for a quick setup ADJUSTABLE OPENING LIMIT: Use this window locking device to control exactly how far your sash can travel, setting a narrow gap for basic ventilation or a wider opening for cleaning, and you can adjust the limit as needed without removing the lock VENTILATION WITHOUT RISK: This security window lock lets you enjoy fresh air day and night while preventing the window from being opened wide enough for someone to climb through or for accidental falls to occur, giving you good everyday protection WIDE COMPATIBILITY: Designed to work on some sliding, casement, and sash windows, this window safety lock fits most standard frame profiles made of wood, uPVC, or aluminium, providing a versatile security solution for different rooms, Manufacturer: GVZUGM