Cleartex Advantagemat chair mats provides a high quality and durable solution for floor protection and ergonomics. Protects your carpet surfaces from office chair casters, general wear, scuffs and spills. Will not crack, chip, break or shatter under normal use and correct application. Free of phthalates, tin, lead, cadmium and BPA for peace of mind when used around children or pets. Limited Lifetime Warranty.