This is a black, standard-sized THYRM SwitchBack 2.0 Large. Unused. I'm selling it because I no longer need it. Made in the USA, so the surface is a bit rough. No pets. Non-smoking environment. Ships via Yu-Packet Plus. Shipping cost of 520 yen included. The packaging is very American, with everything "loose," so I will wrap the main body in bubble wrap and put the O-rings and washers in a zip-top bag for packing and shipping.