Yes4All Ab Exercise Hybrid Mat Dimension 15" x 12" x 2.75" pad with a soft top, and hard bottom and cool USA Eagle printing Lightweight, weigh only1 lb., 5oz High-density foam contours & supports your lower back. One size fits all Designed to offer a full range of motion while targeting the entire abdominal muscle group A complete core exercises and training for the Abs, Back, & Obliques