Our four-fold rest mat features vinyl-coverd foam padding with sealed seams that prevent the spread of germs and bacteria within the mats. Certified compliant with the following regulations: Cal Prop 65 / CPSIA Section 108:10 Phthalates; Cal Prop 65: FR Content; 16 CFR 1500.44 Flammability; 16 CFR 1632; 16 CFR 1633; many others. Open dimensions: 24"W x 48"L x 1"H. Fits our WB1817 Rest Mat Storage Cabinet, sold separately. Made in USA. One Year Warranty.