Gymforward 15inch High Density Core Ab Trainer Mat Black Exercise Abdominal Mat Workout Back Support Equipment

High Density Core Ab Trainer Mat A safe, comfortable design contoured to your lower back to provide support and to help prevent injury. Help support your lower back to eliminate strain and ensures that you maintain an optimal position to maximize the benefit of abdominal exercise One size fits most Perfect for Fitness , a trimmer tummy , and pain free sit ups