Description
ITEM NAME:Arm strengthening ball wrist forearm trainer gyroscope strengthening ball Description: Small, compact and transportable, you can take anywhere. Equipped with outer frame and handle to prevent the ball from falling when rotating. Mechanical device, manual drive, built-in micro-generator, rotating will drive the generator to generate electricity and power the light. All you need do is to increase the speed by making a rotational wrist movement and to keep in sync with the of the ball. Strengthen fingers, wrists, hands, forearms, shoulders and bicep, and also be beneficial in promoting co-ordination and blood circulation. Specification: Material: ABS Plastic Size: 21x9x9cm/8.27x3.54x3.54inch Package Includes: 1 Piece Wrist Strengthener Ball 1 Piece Handle Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement..1 Piece Wrist Strengthener Ball. 1 Piece Handle. Small, compact and transportable, you can take anywhere.