Dual-core of light, rigid polyethylene and heavier shock absorbent reconstituted foam. Combines the easy to handle and store features of Superlight mats and the shock absorbent and non-slip properties of our Deluxe mats. Ideal for use in Junior and Primary Schools. British Standard BS 1892-3:2003 for flammability. All feature Blue PVC flame retardant covers, long-life heat welded corners and a non-slip latex base. The anti-slip surface of the mats needs to be cleaned periodically to maintain their efficiency. The upper surface (PVC) needs a wipe over with a mild cleaning solution as required. Tears should be repaired at once.