Precisely target and release fibrous connective tissue knotted by injuries or degeneration. Use on specific muscle groups before stretching and relaxation exercises. High quality silicone is hygienic, skin-friendly, and lightweight to pack and carry. Exercise guide included. Dimension: 6″L x 3″H (15cm x 7.5cm). Blue. Sold in US and Canada only. View our complete Physical Therapy Rehabilitation catalog.