ArmSport Wrist Roller Wrist & Forearm Exerciser

The size refers to the diameter of the handle. The 60mm medium size is generally better for those with smaller hands or who prefer a standard grip, while the 70mm large size provides a thicker grip that increases the difficulty of the exercise and challenges your hand strength more significantly.

The dual-strap system allows you to attach weights to either one or both sides of the handle. Using a single strap creates an asymmetric load that forces your wrists to stabilize against rotation, while using both straps provides a balanced, symmetric load for standard forearm curls.

No, the ArmSport Wrist Roller includes the handle and the nylon straps only. You will need to provide your own weight plates to attach to the straps.

The knurling is designed to provide a secure, non-slip grip without being overly abrasive. While it offers excellent traction during sweaty, high-intensity sessions, it is comfortable enough for most users to handle without needing gloves.

Yes, while the primary focus is on the hands, wrists, and forearms, the nature of the movement requires you to hold your arms extended in front of you. This engages your shoulders and upper back to maintain stability throughout the exercise.