This quart-sized 'little black dress for hot bakeware' lets you use your own tempered glass jars without having to paint them! Absorbs heat energy, stops reflection, and is designed to view foods during cooking process! Perfectly balanced for easy, safe transport of very hot containers. No burns! No spills! You can remove and carry up to four at a time with minimal oven heat loss and cooking times remain close to conventional ovens. Shipping & Handling included in price.