Product: Weight-bearing wristband Material: Silicone + cast iron Color: pink/black Weight: about 1 pounds (430g)/piecetips: 1. The weight-bearing bracelet is suitable for running, Pilates, walking, travel, home exercise, yoga, etc. 2. The weight-bearing bracelet can be wiped with a wet towel or cleaned with detergent. 3. It is not recommended to remove the weight-increasing parts on the wristband, because it may cause damage to the edge of the wristband.