【Durable Material】:The child locks are made of superior and durable ABS material. Non-toxic and odorless, it is difficult to be damaged by toddlers. 【Attractive Appearance and Easy Installation】:The special H-shaped design can make the installation and operation much easier, beautiful and longer area for the adhevise to install the lock, no tools needed. 3M tape with strong viscosity 3 steps to install the lock. 1. Tear off the covers of the 3M stickers. 2. Stick the lock on the confirmed place. 3.Press and make sure the lock is stuck to the refrigerator(the effect of the tapes will be better after 24 hours), It can be removed easily with the hair dryer, no harm to the refrigerator surface. 【Easy Open & Lock】:One-handed operation, By turning the middle knob, it will unlock and open the refrigerator door. The knob makes it difficult for babies to open but easy for adults to open with one hand. 【Multi-function】: These baby safety locks are compatible enough to lock several dangerous