The Fitness Mad Pro Stretch Tri-Fold Aerobic Mat comes in a Three fold design which makes it easy to put away and is both reversible and non slip. Folds for storage or for extra cushioning when doing sit-ups or crunches. erfect for gym use as lots of mats can be stacked in a small place or for fit pros who need to carry a number of mats for group classes. Dimensions: 134cm x 50cm x 9mm open, 45cm x 50cm x 30mm folded.