This is a Kenko filter size conversion ring. It's a ring that allows you to attach a commercially available 55mm filter to a Hasselblad B50 size lens. It doesn't have the original box, but it's unused. Made in Japan. If you have a Hasselblad lens, how about it? Instant purchase is OK. We do not accept price negotiations. Shipping will be via Yu-Packet Post Mini, which allows for anonymous receipt.