Royal Tradition Solid Black 600 Thread Count Split King Sheet Set 100% Cotton 5pc Bed Sheet set(Deep Pocket) 600 TC Dual King Cotton Experience true luxury when you sleep on these woven solid cotton sheets 600 thread count. Split King set includes one flat sheet,Two fitted sheets and two pillowcases 600 thread count.Thread count is the number of threads per square inch of fabric--the higher the thread count, the thicker, more durable and longer lasting the material Fitted sheets will fit mattress up to 18 inches deep ,Elastic all around for a perfect fit machine wash.Softness enhansed with each washing