Measures 13 x 5 in. with a hollow core. Designed for athletes, long distance runners, endurance athletes, Crossfit competitors, soccer moms, yoga and workout enthusiasts. Unique design with matrix and Distrodensity zones allows for targeted massage.
Distrodensity zones allows for a more realistic massage experience:~ Low and flat: feels like the forearm or palm~ High and firm: feels like the finger tips~ Medium and tubular: feels like the fingers and thumb. From crunches to bicycles to pushups—use it to challenge core muscles. Use the Grid to achieve a comprehensive core body workout.
Core body workout versatility: hip/core, upper back/core. Compact—travel with it and workout anywhere. Environmentally friendly design built from EVA foam.
Designed to withstand constant, heavy, and repeated use without breaking down.