Two Different Profiles.
The Foam Roller is also available in a round (circular) or half-round (semi-circular) profile. Round rollers offer progressive exercise sequences, allowing users to graduate from an easier, smaller diameter to a larger, more difficult diameter. On the other hand, the half-round design helps to assist when rehabilitating the upper and lower back, calves, hamstrings, gluts, and more after an injury ? great for ankle stretching and knee rehabilitation or as a rocker board to improve your balance.