Reduce the risk of injury as you stretch your muscles with the RumbleRoller® Original Beastie Bar™, which features a Beastie® pair made of firm but flexible bumps engineered for deep muscle penetration. Deep Tissue Self-Massage Firm but flexible massage balls made with precisely engineered bump flexion for deep muscle penetration Detachable stands securely hold the bar in place for hands-free massage Easily control amount of pressure for desired effect on various parts of body Quality Construction Durable, long-lasting quality withstands heavy use and does not absorb moisture High-strength fiberglass shaft and smooth-turning nylon bearings for long-lasting performance Non-slip handgrips ensure a comfortable feel Additional Details Beastie® Ball Type: Original Length: 19’’ Manufacturer’s Warranty: 90 days Phthalate and latex-free