Dyna Jumbo Balance Disc Dynamometers Also available with 1 waist

Also available with 1 waist belt and 1 shoulder harness for the trail runner

Top of stone is nubby for tactile beedback and stimulation

reducing pain and swelling from injuries

This app allows users to register  their 3B item to extend the warranty from 3 to 5 years plus free 1 year access to the 3B Smart Anatomy app which includes 23 Anatomy lectures

Dyna Jumbo Balance Disc Dynamometers Also available with 1 waistThe 24" jumbo balance disc is shaped like a regular balance disc. It is easily used with both feet and compliments all balance boards. Removable plug allows the Disc to be inflated, changing the difficulty of the balance task.