SolarWear Oven Heating Bag - Create full surrounding oven heat with this 100% Jersey knit black cotton, 11"x11.5", machine washable, pouch. Has open side with foldover closure for you to use your own filler beans or pebbles. Ideal for using your own 9.5"x 10" soapstone/ceramic/tile slabs for longer heat retention, too. Saves on shipping fees! Shipping & Handling for this item included in price.