100% Silky Bamboo Pillowcase Set, King Pillowcases, Blue 100% Rayon from Bamboo Pillowcase Set Pillowcases are soft to the touch with a smooth, silky feel With bamboo's unique thermal regulating quality, you can stay warm in the winter and cool in the summer Machine wash in cold water only. Delicate cycle. No Bleach. Tumble Dry on low heat. Remove immediately at end of cycle. Press with warm iron if needed King Pillowcase Set includes two pillowcases only, 20x40" each