Used only once, but I'm selling it because it doesn't match my furniture. There are replacement tapes, so you can use it for 4 sets. ✅【Magic child lock that makes children and babies give up】Many reviews say that by installing it inside storage such as kitchens, washrooms, and furniture, children and babies will recognize that they can't open it and give up! External child locks carry the risk of damage and accidental ingestion, making this a safer and more secure baby guard. It can also be used as a countermeasure against earthquakes by attaching it to a cupboard. ✅【No interference with interior design】External types inevitably disrupt the overall look of your interior, but our product is an internal type, so you can lock things while maintaining a stylish space. ✅【Instructional video with commentary by a nursery teacher + instruction manual included】Other companies' products may have insufficient instructions, making installation impossible, but our product comes with a full-color, double-sided instruction manual and an instructional video with commentary by a nursery teacher, so you can use it with peace of mind. If you are unable to install it, we offer support via our official LINE account 365 days a year. ✅【Our commitment】We use 3M's polyethylene foam double-sided tape for the double-sided tape. We have achieved overwhelming adhesion. In addition, we have improved the magnetic force of the key magnet by 1.5 times. It can accommodate door thicknesses of 4 cm or more. We have also included a wealth of necessary accessories, minimizing the need to prepare anything else and reducing the burden on our customers. ✅【Set contents】"Key magnet" x 1, "Key holder" x 1, "Fasteners" x 4 (8), "Locks" x 4 (8), "Fixing machine" x 1, "Spare tape" for the number of sets, "Alcohol paper" for the number of sets, "Marking stickers" for the number of sets, "Instruction manual"