Machine, Speed Bags, Arm Workout Equipment, Forearm Trainer For Boxing,Arm And Shoulder Strength Training                [Great Arm Strength Trainer] - machine provide excellent experience of arm and shoulder strength and speed training,suitable for both home and gym.     [Resistance Adjustment] - By switching the knob, you can change the resistance till to meet your training needs.     [High Quality] - Stainless steel and electroplate painting,smooth as silk and never get rust.     [Easy Maintaining] - Give proper silicon oil to the rotating wheel for lubricating.     [100% Brand new and high quality] - High Wear-resistant and excellent durability.     type: 8 Pounds/12 Pounds     colour: black     Material: stainless steel          Package Contents:     1 x forearm trainer          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.