Pellon Wrap N Zap Batting Potato Batting is a 100% Natural Cotton batting for your microwave and kitchen projects. Ideal for cooking potatoes, corn, rolls and warming tortillas in the microwave. Perfect for microwavable like insulated potato bags, casserole warmers and more! Retains moisture for steamy potatoes and vegetables. Free pattern for a potato zapper on back! 1 yard x 45 inches.