CanDo Digi-Flex Thumb - Finger, Hand, Thumb & Forearm Exerciser rhythmic gymnastics competition Large: 16"-18"

Large: 16"-18"

User can graduate from an easier (smaller diameter) to a more difficult (larger diameter) roller

Sodium Carboxymethylcellulose 5 Percent

durable and corrosion proof

or X-Large 3 1/2"

CanDo Digi-Flex Thumb - Finger, Hand, Thumb & Forearm Exerciser rhythmic gymnastics competition Large: 16"-18"CanDo Digi Flex Thumb The CanDo Digi Flex Thumb develops isolated finger and thumb strength, flexibility and coordination as it builds hand and forearm strength. The design allows for both left and right thumb usage. The adjustable thumb button can attach in 3 positions and rotates and reticulates. Each finger and thumb button can individually lock. Single spring design, with springs hidden inside plastic sheath. Use each button independently to