ITEM NAME:10-40KG Factory Direct Exerciser Heavy Grip Hand Gripper Strength Traini TXZ Descriptio n Specification:.10-40KG Factory Direct R Type Adjustable Grip. Product list: 1 10-40KG grip. Material: pp body + TPR handle rubber + alloy stainless spring. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.