Windsor Hill Premier Spaced Stripe 600-Thread-Count 100% Cotton Sateen King Sheet Set, White Sheet set includes a flat sheet, fitted sheet, and two king pillowcases 600-thread-count; 100% long staple combed cotton; sateen weave Fitted sheets have elastic all around for a snug fit; fits mattresses up to 18-inches Flat sheets and pillow cases have 4-inch hem with hemstitch detail Machine wash cold, gentle cycle; do not bleach; tumble dry low