What You Need To Know About the Fringe Sport Abdominal Trainer Strong abs go hand-in-hand with a strong back. Get total trunk protection with the ultimate core trainer, the Fringe Sport Abdominal Trainer! The Fringe Sport Abdominal Trainer provides abdominal exercise and core training that you can't get with simple floor crunches: Full range of motion necessary to work the entire abdominal muscle group. Crunch exercises and most equipment fall short of this abdominal trainer. A variety of exercises that isolate upper and/or lower abs, as well as the obliques and lower back muscles A safe, comfortable design contoured to your lower back to provide support and to help prevent injury One size fits all! There is no need to worry about height and weight differences between users No more balancing! Unlike fitness balls, this abdominal trainer won't roll or wobble on you, so you can focus on your workout A compact, portable design that requires no set-up or tear-down. Take it with you anywhere! Package Contents and Specifications Contents: 1 - Ab Trainer by Fringe Sport Color: Black Material: Vinyl and foam Dimensions: 12" wide, 14" long, and 3" at the highest point. Warranty: 1 Year