The GoFit Massage Bar XL Plus features a wider, longer, and extra padded massaging roller surface that assists in eroding knots and stimulates blood flow. Product Features Wider, longer and extra padded massaging roller surface Deeply-grooved relief pattern erodes knots, stimulates blood flow Restores flexibility, provides relief for muscle pain Firm, soft-touch rubber reaches deep muscle tissue with more padding Smooth-rolling ball-bearing roller system Ergonomic handles of soft-grip rubber Roller outside diameter: approx. 2" (5cm) Length of roller area: 11.5" (17.5cm) Overall length: 20.5" (52cm) Includes Training Manual