Black nylon thumb support. Removable and replaceable metal plate to fix the wrist! - Brand: KATYOU - Color: Black - Type: Thumb support - Accessories: Instruction manual - Material: Nylon Unisex, one size fits all Used for about 2 days. I do a lot of work with water, so I can't wear rubber gloves with the support, and it's been stored in a dark place. As shown in the red circle in image 4, the letters "thumb side" are written on the plate with a marker. Please refrain from purchasing if you have allergies, as I have pets. It seems to be sold online for a coupon price of ¥1599, excluding shipping. Thank you for viewing.