Bombinate Baby Guard Window and Sliding Door Stopper Color: Gray [Product Specifications] 2 pieces. Approximately 8cm x 8.5cm. [ABS Resin] Made of safe, non-toxic, odorless, and environmentally friendly ABS resin, suitable for babies, making life safer and more secure. [Child Safety Protection Lock] Easy for adults to open, but difficult for children and pets to open. [Easy Installation] Simply peel off the backing paper of the double-sided 3M adhesive tape and stick it to doors, windows, etc. [Wide Range of Applications] Can be installed on sliding furniture such as doors, windows, kitchen doors, and closets, effectively preventing injuries and mischief such as pinching fingers of babies and pets. Effective as a "supplementary lock" for crime prevention and earthquake measures. Child Lock Door Lock