needed to replace my credit card/wallet gizmo; nice idea but they seem to have an unreasonably short life span; usually due to cheap construction, esp. the hinge; this one was especially poor, unuseable right out of the package, one of the small metallic hinge connectors was floating around in the package and there seems no way for them to be affixed permanently; terrible design; will try melting part of the hinge exterior to close the hole but shouldn't have to play with it when it's new