Quick, Tool- Installation】Setting up your locker organizer is simple. Just extend the shelf to your desired length, tighten the adjustment knobs by hand for secure fit-no extra tools needed. Create Instant Extra Storage】Transform single locker cavity into two organized tiers. This locker divider is perfect for separating books, notebooks, lunch boxes, and items for quick access. Customizable Fit for Your Locker】This locker shelf organizer features an adjustable length (10.6"-17.7") to fit snugly inside most standard school lockers, helping you utilize every inch of space efficiently. Strong Support for Daily Essentials】Made from plastic, this school locker shelf organizer can hold up to 22 pounds, providing reliable support for textbooks and binders without bending. Clean Look & Practical Design】The white finish and subtle patterned design of this locker space saver add neat, personalized touch to your locker while keeping everything in its place.