Soft Silky Satin Solid Black 4pc Deep Pocket Sheet Set for King Bed 1 Piece Flat Sheet 90 x 100. 1 Piece Fitted Sheet 78 x 80. 2 Piece Pillowcases 20 x 40 Deep Pocket - Up to 16 inches deep pocket that will fit a wide range of mattresses. 350 thread count King sheet set- Seamless, soft and smoothness. Elastic Band - At each corner to secure the sheet in proper place to your mattress. Fabric Content:100 % Polyester. Easy Care- Machine Washable.