Wrist and forearm pronation/supination tool. Ribbed handle for grip and comfort. Includes a grooved channel around exterior for wrapping the tool in therabands, theratubes, straps, etc. to add resistance to the exercise. 8cm depth prevents wobble so the patient isn't fighting to keep the tool upright during rotation. Printed in PETG rather than PLA for impact resistance, so it won't break if it rolls off the work surface.