CanDo PE White Foam Roller, Full-Skin, Half-Round, 6" x 36" Full Skin design has a textured surface or "skin" on both the round and flat surface to prevent roller from future warping or deforming Improve your balance, strengthen your core, and increase your flexibility with foam rollers Great to use for physical therapy, yoga, exercising, stretching, or resting Half rollers are great to use for ankle stretching and knee rehab, or as rocker balance board Available in two sizes; 6" X 36" and 6" X 12"