YAROO Pillowcase,100% Cotton,Queen 2-Piece Pillow Case Set,Solid,Pink. 100% Cotton Queen Pillowcase Set: Two Pillowcases 20" x 30" each Envelope closure ends to optimally hide the pillow. EASY CARE - Machine wash on cold, tumble dry on low. These are machine washable, but are 100% cotton, so they may wrinkle just a bit. We do recommend washing before using for the first time. I recommend taking them out of the dyer just before they finish drying. 100% MONEY BACK GUARANTEE-If not completely satisfied, return with no-questions asked.