Specially designed for children safety, this lock avoid children from injuries by closing and opening window, door or cabinet. Easy to use, adhesive design, no need of other complicated tools, convenient and effortless. Using safe materials, reliable and durable, can withstand . Features - -Material:ABS - Size: 11.50X8.50X5.00cm/4.52X3.34X1.97in - No screws are required, with compact size and light weight, this sliding window safety lock for your baby is easy to apply and install. - Sliding locks can restrict or block completely to prevent children or pets from opening the door. - This lock is designed for baby, toddlers, children and some special adult demands, easy to fix and use. - Prevent children from opening doors and windows by mistake, provide your home more security. - One-handed sliding glass door lock, the door can be locked simply by lifting both wings, not easy to fall or deform. Package list: 3 x sliding window locks