Description: Quality Material: This arm ball is made from quality alloy steel, which is wear resistant, sturdy, not easily deformed. It can be used repeatedly for a long timeComfortable hle: The forearm exerciser comes with hles on both ends that are easy to grip. The comfortable antislip hlebar provides stability for your strength trainingStrength training equipment: This strength training equipment is specifically designed for strength training of your wrists forearms. It also includes a builtin pull rope to offer you diverse workoutsSuitable Size: This core trainer measures 45 cm in length 15 cm in width, featuring a compact structure that makes it easy to carry useWide application: This wrist ball is great for men, women, home fitness routines, birthdays, other occasions Specification: Material:Alloy Steel Size Chart: 45cmx15cmx15cm/17.72inchx5.91inchx5.91inch Package Includes: 1Arm ExerciserBall Note: Please allow slightly errors 1-2cm differences due to manual measurement.