Fangrui Product Details Upgraded 4 rounds of passwords are more secure. The 3 rounds of passwords are improved to 4 rounds of passwords, which are stronger and more secure.This better protects older and more naughty children. Dont worry - you can apply these locks any where you need to, and move them if necessary. Installing Easily: Use High quality Adhesives that have been tested for strong hold but will not leave residue if taken off (Takes a lot of force to take off) Refrigerator lock will instantly stick to fridge, not require drilling or screws.The lock is small and compact. So it does not look so big on your refrigerator. No more fear accidentally harming your child with the device built to protect them. It can adapt to almost any surface.So child safety locks can even be fitted onto your drawer,seat,refrigerator,window,cupboard, oven,freezer. Instructions: Please clean and dry the surface of Refrigerator. Pre-assmble the upper lock arm to the base. Find out the suitable palce and mark the location. Colour:Black Material<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store