All new for 2012! Introducing the Exervo Nimbus UltruBeadTM Pro very high density foam roller. The UltruBead is the hardest roller in our line measuring Level 6, Very Firm. Level 6 means the roller has practically no give at the surface. It"s designed for athletes and experienced foam roller users who need a very hard foam roller for very high focal pressure and deep tissue massage.The UltruBead Pro is made from heat molded UltruBead foam microbeads. This process forms a perfectly round, highly durable foam roller with radius edges on each end. The UltruBead roller is one of the hardest high density foam rollers available. They"re made in the U.S. from 100% polypropylene foam microbeads. This means you"re buying a precision crafted foam roller designed specifically for exercise, therapy and massage. The 18" long UltruBead is a 36" roller cut in half so one end has a radius edge and the other a straight cut edge.