Burst of Circles - Sheet Set, King. Add a burst of color to your bedroom with our Burst of Circles Bedding Collection. This 200 thread count bedding collection is made of 100% cotton. The festive circular design will add just the right amount of color and fun to your bedroom. Please refer to size chart for details. Machine-wash gentle separately using mild detergent, no bleach. Tumble dry on low setting, remove promptly to reduce wrinkle, press if needed.