This is a COCO child lock. You can use it to prevent children from tampering with doors, etc. I purchased them as a set of 5, but 2 of them have remained unused. (The protective film on the adhesive surface is still attached.) [Contents] 2 unused items, instruction manual [Color] White *The actual color is a slightly light gray. [Size] Approximately 10 x 4 cm Will be shipped via Yu-Packet Post mini (anonymous shipping). Scheduled to ship within 24 hours. Thank you for looking.