Full size model (31x6) long enough to roll the widest of your back and both legs on one pass. * Original Density surface intended for people new to foam rolling or anyone who has experienced positive results from conventional foam rollers. * Provides firm BUT FLEXIBLE surface to relieve muscular pain and tightness similar to the thumbs of a massage therapist * Stretches muscle and other soft tissues in multiple directions, breaking down "knots", increasing your flexibility, and relieving your pain. * Higher strength and tear resistance, wonderful feel, permanent retention of shape, guaranteed to outlast and outperform compared to any foam roller on the market.