Safety Protection: This child proof door handle lock prevents children from entering and exiting the room without adult supervision and prevents children from playing with the door and getting their fingers caught.Easy to Use: This baby proof door lock adopts a push-button locking and unlocking design, which is simple and easy for adults, but difficult for children to operate. Simple design to blend into your room design.Easy to Install: This door knob safety lock requires no tools or drilling, just make sure the door surface is clean and dry, peel off the door handle lock sticker and stick it under the window handle. Easy and fast.High Quality Material: This door handle lock is made of high-quality ABS material, safe and reliable, with rounded edges, smooth and comfortable, durable and can serve you for a long time.Widely Applicable: You will receive 1 pieces of child safety locks, suitable for almost all doors and windows with rotating handles, helping you prevent your children, cats, dogs and pets from entering and exiting.