Zamst M size black supporter, made of nylon and polyurethane for a comfortable fit. Thumb support for both left and right thumbs. I purchased this here, but the size didn't fit, so I'm reluctantly selling it. It's a new item, only tried on, but please refrain from purchasing if you are sensitive to details. Please adhere to the 3N rule (no returns, no refunds, no exchanges) after purchase. - Brand: Zamst - Size: M - Color: Black - Material: Nylon/Polyurethane - Country of Manufacture: Japan