Z-Athletic 6'x12' Gymnastics Tumbling Martial Arts V4 Folding Mat Dimensions: 6'x12'x1-3/8" unfolded, 6'x2'x10" folded Covered by high quality 18oz. vinyl Contains high density cross-linked polyethylene foam Velcro on all four sides Allows for side to side AND end to end connection to other mats