Sheetsnthings Attached Waterbed Sheet Set, 100% Cotton -Solid Chocolate, King Size- 300TC, Soft Watered Sheets Material: 300 Thread Count. The HIGHER the THREAD COUNT the SOFTER and MORE DURABLE the fabric becomes King/CalKing Size 4-Piece includes: One King Flat sheet 80 inches wide x 96 inches long, One King Fitted Sheet 72 inches wide x 84 inches long and Two King Pillowcases 20 inches wide x 40 inches long each Flats and pillowcases made with 4 inches hemming and Fitted Sheet Pockets Made With POLE Attachment For Better Hold (POLES ARE NOT INCLUDED) Fits waterbed mattress that measures 10-12" and the Attachment feature made is for making your bed much easier Care instructions: Machine washable