-Child and Pet Protection LockWhen you have to leave your baby and pets alone in your room and living room because of work and life needs. This sliding door and window lock will take on the guardianship to better protect them/them and can make sure your babies and pets won't find their way out through the glass sliding doors or windows. Better protection and safety so you can work or cook food without worry. -Universal Sliding Door and Window CabinetIt is suitable for all kinds of sliding doors and windows, cabinets and patios. Suitable for all kinds of smooth and flat glass material, aluminum wood, plastic material surface. The security of the door and window lock is the best protection for family members. Its transparent butterfly design not only looks good and beautiful, but also can be integrated with any home decoration style. It is both practical and beautiful. -Easy to install without punchingYou can install it on the top where your toddler's hands can't reach, no need to punch holes, easy to install in a minute. Just stick the latch to the other side of the door according to the needs of the door or window you want to open, the size and width of the gap. -How to useClean the position you need to fix and install it on. Please leave it for 72 hours before use to make it stick to the door or window better. Open the wings on both sides of the butterfly to block the movement of the door and window. Reverse the operation of the wings to reset, the door and window can open and close normally. - Product DetailsYou will receive 4 transparent butterfly shaped door and window limit locks. Its size is: 85mm*66mm. it is transparent non-marking adhesive, strong adhesion, easy installation, both beautiful and practical.