This is the "Mamollant" child anti-lost harness, which I prepared just in case for my first trip abroad with my child. It is brand new and unused. In the end, I didn't need to use it, but I prepared it so that I wouldn't panic if my child got lost abroad. Once you get used to it, it's very easy to use, so the instruction manual is also included. If your child is active, this product is designed so that the harness feel is less noticeable when you are holding hands, which is why I purchased this one after comparing it with various other options. Safe anti-lost harness with a lock release function. - Brand: chokotto - Color: Blue - Accessories: Storage bag - Instructions: Instruction manual included - Features: Lock release function Thank you for looking.