JUST SUITABLE FOR SOME DRAWERS- The drawer is widely used in furniture with drawers like the picture shows with the smooth and cleaning surfaces. The height to install it should be over 3.3cm(1.3"), and the width to install should be 1.2-1.8cm. Not work on cabinets/cupboards and can't be used on the top or middle, just for some drawers like the picture shows that meet the height and width.INVISIBLE CHILD DRAWER LOCK- Adopt an invisible design, which is installed inside the drawers. It's easy to use for adults, but won't get your curious baby's attention and the ultimate aim is to keep your kids from danger.EASY TO INSTALL - The child safety locks latches are incredibly easy to install! Use strong adhesive tape, no need for tools, magnets, or drilling. You can finish in minutes(please refer to the instruction), install on the left/right side of the drawer will be more safety for your lovely baby.STRONG ADHESIVE TAPE - Durable and convenient drawer locks are made of ABS resin material and strong adhesive, which will hold securely through the years and can be removed without damage. Please make sure you have enough space to place them on your drawers.KINDLY NOTE- After sticking the drawer lock, please lay it aside for 24 hours. The strong adhesive gel takes about 24 hours to firmly adhere. Please measure the height & width of your drawers before purchasing.