Thank you for viewing! (*´∇｀*) This is a hand and wrist support, a HAND BRACE. I opened it and tried it on, but the size didn't fit, so I'm selling it. It's a new, unused item, only tried on. It's a compression-fit type with antibacterial and deodorizing treatment. For the back of the hand (size M) approximately 14cm to 16cm Made in Japan One piece for one hand, usable on either the left or right hand. Due to shipping costs, the item (support only) will be sent by mail. Thank you for your understanding. If you need the box, please comment. Immediate purchase is welcome.