The EVA puzzle mat made of EVA material and is considered to be the safest material for baby play mats. 100% non-toxic, environmentally friendly, tasteless, BPA, phthalates, latex and formaldehyde. 100% hypoallergenic foam for sensitive skin.complement any room, multi-functional configuration - various padding design options. Set as game pad - all tiles interlock and lie flat. Or, include an upright soft foam tile fence - providing children with a secure visual edge. The soft foam sidewall is ideal for holding toys and balls.