ITEM NAME:Premium Wrist Roller Gym Curl Forearm Exerciser Curler Arm Training Triceps img *{margin:0;padding:0;.You can hang other weights by the hook for example sandbag when you don't have weights plates. Material: Steel, Nylon, Foam. Compatible with standard size weight plates, but not over 20lbs/ 9.6kg. SKU: FUZ0006175954048015.