The Body Solid(R) Premium 6mm Yoga Mat features a pre-printed center line with repeating horizontal marks every 6'' to aid with proper alignment and positioning during deep stretches and poses. Improve Alignment Pre-printed center line with repeating horizontal marks every 6'' aids with proper alignment Repeating decorative pattern gives the user specific spots that can be used for positioning Quality Construction Durable, high density PVC is built to withstand high volume usage Stable, non-slip surface is suitable for all difficulty levels Additional Details Mat Thickness: 6mm Dimensions: 72'' L x 24'' W Manufacturer's Warranty: 30 days