This Martex Limited T250 Fitted Sheet in White for King size and is measuring 78" x 80" x 10", fits mattresses 10-12”. It’s produced on sophisticated looms in a world class factory. It is 60% cotton for comfort 40% polyester for durability and its percale/plain weave fabric is designed for long lasting performance. Preshrunk finish for little to no-ironing. Machine wash and dry with less shrinkage. Replaces 1125240