Specifications Material: ABS Packing Includes: 4 x Child Safety Locks for Sliding Doors 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 seamlessly blend into different sliding 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 sliding door lock is simple and stylish, which can match your various home styles. It is an ideal choice for preventing your baby getting access to closets, cupboards, shower doors and windows. Self-adhesive Design:The self-adhesive design of the sliding 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 sliding door lock can easily pop up and down easily to lock and unlocked doors quickly. Restrict and prevent the opening of sliding doors and windows, keep your children inside safely, and protect them from harm.