MIRACLE MADE BRAND KING SIZE PILLOW CASES (2)...These large King size pillow cases are made of 100% cotton with treated microbial finish. this means they stay fresher longer and that means less laundry and cleaner results for your body. They seem cooler in the heat and retain some heat when it's cold. I bought the matching sheets but only use standard size pillows so these would be a great find if you sleep on king pillows. These measure 36" x 20". They will be wrapped in a plastic bag (keep out of reach of children) and in a shipping envelope. Any questions, please feel free to ask.