Kas.- Duvet Cover Set Nyah 260x240 + 2 pillowcases 50x90 cms, King Size Kas Australia.- Duvet Cover Set Nyah 260x240 + 2 pillowcases 50x90 cms, King Size (104''x96'' + 20"x36") Kas duvet covers, made of pure cotton, retain their bright colours in time even after repeated washing, thanks to Indanthren printing 100% cotton 80 threads/cm 200 threads/cm - machine washable at 40c - hot iron** - can tumble dry