Window door locks with strong adhesive tape, which can stay on windows, sliding glass doors firmly.Especially a flat surface both your belongings and your child are protected. A great tool for your children's safety: It is helpful for parents to pay attention to baby's safety to prevent your children away from dangerous areas, such as outdoor yard, kitchen cabinets, door, window and so on. continued. Easy to install: Just clean the needed surface by the dry towel, peel off the tape on the back then press on the desired location for one minute, very convenient and practical. Super design with side wings, which is an easy lock for baby proofing without keys, just make the wings fall off if you don;t need to use it, easily goes through sliding glass doors, a great experience. With eco-friendly ABS material, great for safety baby kids protection / your lovely pets. Features: Type: Door Lock Sliding Window Material: ABS Blue color Quantity: 1 pack Size: Approx.90*70*40mm Weight: Approx.17g Information Package: Package Size: Approx.9 * 9 * 0.5cm / 3.54 * 3.54 * 0.2in Package Weight: Approx.18g / 0.63oz Package list: 1 * Sliding Door Lock Window