Ab Carver Sport is one of the most simple (and demanding) ab wheels available today. Its combination of superior design, durability, and affordability is unmatched. Its high quality material and quick snap installation make it a must-have for any home gym or fitness travel kit. The wide wheelbase and non-slip rubber treads deliver sturdiness and confidence to the user. Strengthen and tone your abs, core, arms and back with the Perfect AB-Wheel. The non-skid wheel base provides extra stability when rolling out to the left, right and center. Ergonomic hand grips are angled to help activate arm and core muscles. The sleek non-bulky design makes it easy for travel and high-quality construction means it is built to last.