Wrap yourself in the Softness of the Luxurious 100% Combed Cotton Sheets Made from Long Staple Yarn with an Authentic Sateen Weave at 650 Thread Count per square inch. The waterbed fitted sheet is similar to the flat sheet except it has an extra triangular fabrics sewn at the four corners and both flat and fitted are sewn together by the footer so bed stays made. The extra triangular fabric sewn at the four corners in the fitted waterbed sheet are turned over the corners of the water mattress and that is how you dress your sheets on your bed. In addition, the fitted sheet is always made few inches larger than the water mattress so the extra fabric can cover the mattress sides when made. The Poles attachment feature is an additional feature that is used to keep the triangular fabric fully opened so fitted sheet doesn"™t come off easily. •100% Combed Cotton Sheet Set.•650 Thread Count per square inch.•Royal Tradition Brand. •Solid Sateen Sheet Set•Poles are Not Included•Single Ply ConstructionAvailable Sizes Include:•Queen Attached Waterbed Sheet Set: 1-Queen Flat Sheet 72"W x 93"L, 1-Queen Fitted Sheet 72"W x 93"L and 2-Standard Pillowcases 20"W x 30"L each. ( Flat & Fitted are attached by the footer)•King/California king Attached Waterbed Sheet Set: 1-King Flat Sheet 84"W x 93"L, One King Fitted Sheet 84"W x 93"L and Two King Pillowcases 20"W x 40"L each. (Flat & Fitted are attached by the footer)Note! Poles are NOT included