4-minute microwave potato cooker The Potato Express is a washable, reusable microwave bag cooker that steams up to 4 potatoes at a time in just 4 minutes! Enjoy perfectly cooked, moist, delicious potatoes while significantly cutting down on your prep time when making mashed potatoes and other favorites dishes. The Potato Express works with all types of potatoes, including sweet potatoes and yams. It also steams corn and softens hard bread! Polyester/cotton, 10"L x 7?W x 1"H. Set of two