Baby Safety Lock: 4pcs lockable window cable, allowing ventilation without compromising child safety. Ideal for home, public and commercial applications. High Quality: Made from PVC, wood, aluminum and metal. Coated with MRSA repellent. Easy to Install: Can be easily installed on windows with four screws. Limits the distance a window can open. It can be removed from one end by using the key, the windows can be opened fully. Keys provided: can be locked and unlocked in seconds, fit all materials: suitable for most types of small windows and doors. Screws provided Feature: 1. Brand new and high quality / Universal window and door restrictor 2. Made of UPVC, wood, aluminum and metal 3. Coated with a repellent 4.can be adapted to all materials 5.Can be used in hospitals, hotels, homes and schools 6. suitable for every type of window opening 7. Discourages burglars and intruders 8. Designed specifically for security children Specifications: Type: Door Window Restrictor Window Style: Double