This is a blue anti-lost harness made with elastic coiled wire. - Brand: chokotto - Color: Blue - Type: Anti-lost harness - Material: Nylon - Features: The parent side has a magnet, and it unlocks by holding it to the gray plastic part on the child's side. You can attach it to each parent's and child's wrists, or in our case, we attached it to my backpack and my child's wrist. It has been used, but it has only been used about 10 times for outings, so I believe the condition is quite good. No instruction manual.