Durable ABS Material: The child safety locks are made of high-quality ABS material, which is sturdy and durable and has a long service life. Diameter: 7cm, designed to seamlesy blend into different iding doors or windows without taking up too much space. There are 4 in total, enough to meet your needs. Simple White Appearance: The white appearance design of the iding door lock is simple and stylish, which can match your various home styles. It is an ideal choice for preventing your baby ng access to closets, cupboards, shower doors and windows. Self-adhesive Design:The self-adhesive design of the iding door child lock is easy to install. Simply clean the locked area, remove the 3M tape backing, and press to the desired position for up to one minute. It is suitable for working on various surfaces such as glass, wood, plastic and metal. Keeps Your Toddler Safe: The iding door lock can easily pop up and down easily to lock and unlocked doors quickly. Restrict and prevent the opening of iding doors and windows, keep your children inside safely, and protect them from harm. Wide Application: The iding door locks children can not only as a safety lock for baby child, but also great for your cat and dog. It is suitable for household iding glass, iding door, iding window, such as balcony, closet door, kitchen door, closet door, etc., to provide protection for your children or pets.