Koval Inc. Electric Snow Cone Maker Ice Shaver Machine Acrylic Box Hopper is made of stainless steel for long-lasting durability, and its powerful motor is designed to give you the power and reliability you need throughout the day Can grind up to 440 lbs. per hour to ensure you have a constant supply of ice The seamless extra thick acrylic box keeps the whole room cool when filled with shaved ice that you can pre-shave a full box to serve the long queue Stainless steel screws prevent rust pollution to the shaved ice in the box Dual blades provides double efficiency comparing to the singe blade machines