VEVOR Concession Window, 91.4 x 91.4 cm Aluminum Alloy Food Truck Service Window with 4 Horizontal Sliding Screen Windows & Awning Door & Drag Hook, Serving Window for Food Trucks Concession TrailersProduct Features Premium Material Our concession window adopts an aluminum alloy frame with 0. 05 inch 1. 2 mm thickness, ensuring durability, sturdiness, and longer service life. The screen windows are made of 304 stainless steel, which is rust proof, corrosion proof, and easy to clean. Thanks to the carefully selected material, this product can effectively cope with the challenges of various outdoor adverse weather conditions. Versatile Use Our