Practical Velcro Strips: This work out mat has four facet hook &loop Velcro For extra link, which allows for side to facet and conclusion to end connection to other mats.If you buy greater than kinds, you are able to Mix mats as to get a larger dimension mat Tumbl https://franciscoejjjk.luwebs.com/27437342/an-unbiased-view-of-gymnastics-air-track-mat