【Stainless Steel Frame】Made from premium stainless steel, this concession window is rust-resistant,durable, and ideal for long-term outdoor food truck use. 【Four Sliding Windows】Designed with 4 horizontally sliding windows, allowing flexible operation and convenient serving in busy catering environments. 【Mesh Screen Protection】Equipped with fine mesh screens that keep insects and debris out while ensuring ventilation for a clean, hygienic service space. 【Smooth & Secure Operation】The windows glide easily on sturdy tracks and include secure locks for safety during and after business hours. 【Easy to Install】Pre-drilled mounting holes make installation quick and simple, perfect for food trucks, concession trailers, coffee carts, and snack stands.