I bought this for childcare, but I'm selling it because I ordered the wrong size. It's new and unopened. It's a set of two. You can use it on both hands. Brand: White Lapin Size: LL size Product use/method: Tendonitis Use: Both wrists Target age: Adults Size (circumference of the widest part of the palm): M size; 16-22cm L size: 18-24cm (This is the product) LL size: 20-26cm Made in Japan, tenosynovitis, postpartum, childcare, wrist supporter, thin, for women, for men, golf, tennis, for left and right hands, thumb base supporter, ash pink