This is a door opener that allows you to hold onto things like train and bus hand straps and handrails without directly touching them, by using the hook. It can also be used to operate escalator handrails, lever-style door knobs, and elevator buttons. Furthermore, copper is conductive, so it can be used to operate touch panels on ATMs, smartphones, etc. Manufacturer: GILD design Model Number: GM-348 Retail Price: 1,680 yen + tax Size: 3mm x 41mm x 81mm Weight: 42g I purchased this several years ago and have stored it at home. It is new and unopened, but the outer packaging has some scratches and dirt, so please refrain from purchasing if you are concerned. Thank you.