This tumbling mat adds functionality by providing a white practice handstand as well as hand/foot cartwheel guides . PARENT TIP: This mat helps beginner tumblers learn proper hand placement for the cartwheel. Go one direction for left handed and the other for right handed. Safe, Non-toxic & Easy To Clean: Lead-free and meets all CPSIA standards. This easy to clean nonporous vinyl is mildew and puncture resistant. Simply clean with washcloth, soap and water..