Polyethylene foam rollers are perfect for positioning, balance, postural and muscle re-education, spinal stabilization, body awareness and coordination, and ranging and strengthening activities. Round rollers offer progressive exercise sequences - user can graduate from an easier (smaller diameter) to a more difficult (larger diameter) roller. The foam is strong enough to be used by large adults and active children. Foam rollers are available in 36" and 18" lengths and 6" diameter with a round (circular) profile. Polyethylene foam rollers are available with standard formula in white and composite extra firm in black.