Child chest belt, backpack strap, backpack belt. The locking part has a whistle function. Includes 1 web dominator, used to gather the ends of the belt or to hold keys, etc., by clipping them to the belt. By connecting the left and right shoulder straps of your child's school bag or backpack at the chest, you can carry it stably. - Color: Black - Material: Nylon - Buckle type: Plastic buckle - Strap width: Approximately 2.5cm Unused item No instruction manual included. #Schoolbag #Mountaineering #Hiking #Commuting #Backpack #CrimePrevention #SchoolCommute #ForChildren #Entrance #SchoolBag