Premium Durable Construction: Crafted from thick, high-quality plastic with textured surface strips, this tray system offers strength and a professional finish—built to withstand daily use in offices, homes or classroom use. Practical Side-Load Design: Open side-access trays with a gently beveled front edge allow smooth insertion and removal of letter and A4 papers, folders, and documents while keeping contents neatly contained and aligned. Flexible Stackable 4-Tier System: Stack trays straight or in a staggered ladder-style configuration to create a stable filing solution that maximizes desk space and adapts to your workflow. Efficient Document Management: Easily sort mail, project files, school papers, invoices, forms, and office documents—ideal for desks, shelves, cabinets, classrooms, and shared workspaces. Compact & Practical Dimensions: Straight-stacked size measures 13 1/4" X 10 3/8" X 7 1/4”, perfectly sized for letter and A4 documents while maintaining a clean, clutter-free desktop footprint. With modern and innovative design this letter tray stands out from the others because it can be stacked, thanks to an exclusive system in its base. It also has an elevation in the front, preventing documents from sliding out. Made of high quality plastic with thick walls for unmatched durability. It is very practical and has easy access, ideal for organizing all your files. It can be used on a desk or inside cabinets. Perfect for offices, clinics, hospitals, schools, homes and much more. *Package with 1 set of 4 tier. Colors may vary due to different screen configurations.