The MetroMax® 4 Stackable Shelf Ledge measures 21"W x 2"H and is designed for easy attachment to the sides of shelving units. Constructed from durable polymer and stainless steel, this ledge provides a reliable barrier to keep items securely in place. Its snap-on design allows for quick installation and removal, enhancing versatility in storage solutions. NSF certified, it meets strict public health standards, making it ideal for commercial kitchens and food service environments.