This is a door opener that allows you to hook and grip without directly touching train and bus hand straps, handrails, etc. It can also be used to operate escalator handrails, door knobs with levers, and elevator buttons. Furthermore, copper has conductive properties, allowing you to operate touch panels such as ATMs and smartphones. Manufacturer: GILD design Model Number: GM-348 List Price: 1,680 yen + tax Size: 3mm x 41mm x 81mm Weight: 42g Purchased several years ago and kept in storage at home. It is new and unopened, but there are scratches and dirt on the outer packaging, so please refrain from purchasing if you are concerned. Thank you.