McDavid wrist supporter, 38 cm long, 35 grams. Phiten multi-purpose supporter (long), 31 cm, 15 grams. Phiten multi-purpose supporter (short), 29 cm, 20 grams. Supports wrist, ankle, and elbow pain during sports, weight training, heavy labor, etc. We recommend using McDavid for wrist pain and Phiten for mild pain or prevention. Phiten can also be used to support knee pain, depending on your physique.