BalanceFrom Ab Mat Trainer Abdominal Machine Exercise Crunch Roller Workout Exerciser

Optimized Density - The mat is neither too hard or soft for better and comfortable workout Dimensions - 2 sizes to choose from according to your needs. 15" x 12" x 2" and 10" x 12" x 2" Contoured - Designed to fit the lower back for optimal comfort and lumbar support Lightweight - Light weight for easy storage and transportation, take it for your gym exercise Regular size