Powerball Wrist Arm Trainer

Product Name: wrist trainer ball

Description:

*1. Material: aluminum alloy+canvas+plastic

*2. Size: 7 cm(diam), 6 cm(height), 49 cm(cord length)

*3. Weight: 360 g

Features:

*1. Mechanical power, no power required. The centrifugal force is generated by the rotation of the wrist and the rotation of the ball inside to maintain the rotation of the core.

*2. Metal core, sturdy and durable.

*3. Variable speed lighting, bright and dazzling.

*4. The spring part is optimized for structure, pulling more smoothly and reducing noise.

*5. Compact and lightweight, portable and easy to store.

Packing List:

wrist trainer ball *1

cord *1