Black High Density Foam Rollers Full Round - Extra Firm - 6" x 12" Round Extra firm - made with molded polypropylene foam Technology, premium foam roller has a 2 lbs. Per cubic foot density, smooth surface, will not lose its shape after heavy Use, and repels liquids For muscles - premium high density foam roller helps to relieve muscle tension and increase muscle reflexology, which is great for physical therapy, before or after exercise, yoga, and massage therapy, etc Precise muscle therapy - perfect for positioning, balance, postural and muscle re-education, spinal stabilization, body awareness and coordination, and ranging and strengthening activities 3 sizes available - available in three sizes to accommodate all of your foam rolling needs: 6"x12", 6"x18", and 6"x36" Made in the USA - our rollers are made in the USA Molded foam roller has a 1.9 lbs. per cubic foot density, will not lose its shape after heavy to moderate use High density foam targets specific muscles for self-myofascial release to ease aching muscles while improving joint range of motion Multiple uses: great for sore muscles, balance, flexibility, physical therepy, yoga, and many differnt strength training exercises Available in three sizes to accommodate all of your foam rolling needs: 6"x12", 6"x18", and 6"x36" Made in the U.S.A.