Our box features a 1/2'''' thick High Density Solid Poly Floor and 3/4'''' thick Solid Poly sides for easy cleaning and minimal freeze up. Also, less friction means less force needed to pull the load off. Box flares and side panel retainers are made of SAE 304 Stainless Steel that resists rust and corrosion. This box is built to last! Vertical Beaters The Twin Twister Vertical Beater is both versatile and tough, and offers a superior spread pattern compared to horizontal beaters. It features Twin 30'''' Diameter Vertical Beaters w/ 10MM Thick Spiral Flighting. Abrasion-resistant knives come standard, but may be replaced by any number of cups for finer materials and semi-solids. Expect consistent spread patterns of 30 - 40 feet in width.