This is a gripper clamp used for grip strength training. It supports up to 300lb. It's easier to remove and use than hose clamps. The weight is approximately 50g. In terms of COC grippers, it supports up to NO.3. Although it is new and unused, please be aware that there may be scratches and minor imperfections. Please refrain from asking for a price reduction. *The hand gripper in the second image is not included. Shipping will generally be on weekdays. Captain of Crush