... nonwoven fabrics, so can have very good moistureproof effect, and every temperature can increase the aluminum film firmness. 1.8 ... kind of heavy metals (Pb, Ba, Cd, Cr) and Phethalate, Formaldehyde3) Soundproofing : Excellent cushion will completely absorb your lovely children's foot ... ok, Of course safe.Furthermore It is light, harmless, soft, and fluffy cushion feeling. RichMan EPE Baby Play Mat