This is the mode switch for an 8mm video deck. EV-BS3000 GV-8 etc. It has been stored in a warehouse for many years. It is a new, unused item. There is no sign of rust on the exterior. Please see the photos. It is sealed in a plastic bag. However, there is one hole from a staple that closed the invoice. Returns are not accepted, so please purchase only if you understand this. - Model Number: 1-572-173-21 - Type: Slide Switch (Encoder) It will be shipped via Nekopos (a Japanese delivery service). Thank you for viewing.