Foam rollers enhance balance, body awareness, muscle re-education, flexibiilty, dynamic strength and myofacial release. Constructed from medical grade foam, our j/fit High Density Foam Rollers are extra firm and will last much longer than standard foam rollers. Dense foam construction provides firm support for all body types and prolongs the life of your roller. Half-round foam rollers are ideal for flexibiity, massage and balance training. Designed for less advanced users who do not want the challenges associated with using a full round foam roller for particular workouts and want lighter myofacial release resulting from working out knots and sore muscles. Length: 36" x 6" Diameter (3" Height)