Our Cartwheel Beam Mat adds functionality by providing a white practice beam stripe on one side as well as hand/foot cartwheel guides on the other * They are made with 18 oz. vinyl and 5/8 in industry standard, cross-linked polyethylene foam * On the purple side use the hand/foot prints to practice left- or right-handed cartwheels and practice beam skills on the lime green side * They do not contain lead and have passed testing requirements enacted by the Consumer Protection Safety Improvement Act of 2009