Mattel Thomas The Tank Engine Right On Time Twin Reversible Comforter Set Engineered reversible comforter . Sizing is approximate and may vary slightly due to manufacturing processes. Printed fabric is 60% cotton 40% polyester. 180 thread count. Reversible Machine wash cold, tumble dry low. Do not bleach. Wash dark colors seperately.If item does not have free movement in washer & dryer use larger capacity commercial machines. Not for use for children 3 years of age and under.