Tumbl Trak Jack & Jill Mats Tumbl Trak Jack and Jill Mats are ideal for any young child learning new skills Each mat offers 18 in wide folding panels in a two-color pattern with Velcro on two ends and non-skid material on the bottom to prevent mat sliding or moving when in use This means that the mat is 6 in narrower than other tumbling mats, making it easier to perform skills over the mat and easier to carry Our Jack and Jill Mats are made with 18 oz. vinyl and industry standard, cross-linked polyethylene foam They do not contain lead and have passed testing requirements enacted by the Consumer Protection Safety Improvement Act of 2008