The production policy is practical, universal, and fancy.This ID case uses rope and carabiners that are used for mountain climbing and outdoor activities.The carabiner opens and closes for easy removal and attachment of the ID case and rope.The translucent coloring of SALLIES products is an attractive reminder of 90s electrical appliances, watches and more.Not only can it be used as an ID case, traffic IC card holder, but it can also be used for leisure tickets or as a fashion item.