FEATURES: 12" On-the-go travel size Arched "Barrel Shape Support" rolls with the body's contours while offering greater support for targeted massage Deeply-grooved relief "Go" pattern improves blood flow and helps break up knotted muscle tissue Thick, massaging foam that's firm, but ultra-soft to the touch UltraFin Core prevents flexing and breaking of inner core Holds more weight than traditional "hollow core" rollers Awaken tired muscles pre-workout and knead aching muscles post-workout Patent Pending