The holder's body and screen are made from 2mm thick polycarbonate and secured by steel fasteners. Weights 1.4 oz. The badge holder with a metal clip allow you to carry your ID on your belt, pocket, key chain, backpack or a lanyard. The opening on top of the clip is designed for connecting to lanyard or carabiner. The clip is made from manganese steel making it strong and durable. It holds cards well no matter it is loaded with 1 card or 4 cards. The spring holds cards on the sides so it won't damage your cards or let them slip out. Unlike plastic retainer, metal spring does not lose elasticity. It can be used as a wallet thanks to its' 4 cards capacity. You can carry your credit cards, driver license and work ID all in one in this compact holder. The steel clip can also be used as a cash
