The GRID X Ball is an extra-firm massage ball that features TriggerPoint's patented GRID surface pattern that replicates the feeling of a massage therapist's hands.

• Medium size massage ball (5 inches, or 12.5 cm, in diameter) ideal for muscles in the back, legs, hips, and more
• Extra-firm density for deep-pressure, ideal for experience self-massage enthusiasts
• Patented GRID design replicates the feeling of a massage therapist's hands, like three rollers in one
• Unique three-dimensional surface helps aerate tissue, promoting the flow of blood, oxygen, and the nutrients needed to repair muscles
• EVA foam is water- and sweat-resistant, making it easy to clean
• Lightweight, portable, and durable EVA Foam massage ball is an ideal travel companion on the road
• Smooth foam composition rolls comfortably against skin and clothing