... ,non-toxic,smellless,softable an spongy like to touch 2.pvc material 3.many colors and designs 4.good quality pvc ... :3-7mm7. Fashionable colors, excellent anti slip performance, non-toxic, smellless, softable an spongy like to touch,8. ... Used on any hard surface,non-slip bottom provides stablility duiring yoga routines,excellent flexibility ... . Easy to roll or fold for transport pvc yoga mat