The Premium mats have 1'W color vinyl panels covering a core of 1.375" crosslinked polyethylene foam, providing superior shock absorbency. They are ideal for high-impact use.All of our mats and wall padding meet the requirements for lead and phthalates as defined by the Consumer Product Safety Improvement Act (H.R. 404). Vinyl also meets FR specifications of NFPA-701, CSFM and ASTM E 84. All mats are covered in high-impact nylon-coated vinyl that has been treated with anti-mildew and UV-resistant agents. Mats normally ship within 4-5 weeks.PLEASE NOTE: These mats meet the requirements for lead and phthalates as defined by the Consumer Product Safety Improvement Act (H.R. 404).