The RYOBI LINK Modular Storage System is revolutionizing the storage industry, enabling you to Organize, Access and Transport your life. The Medium SlotBox Organizer can be individually placed on a LINK Wall Rail or in a LINK Slotbox Receiver. The included organizer divider sets are customizable to suit your needs, keeping small parts in their place. Durable impact resistant material and IP54 rating protect your items from drops, water and dust. Easily identify what's inside each organizer with clear tops. Expand your SlotBox system with additional SlotBox Organizers, sold separately. The SlotBox Receiver can hold 2 Medium Organizers, 4 Low-Profile Organizers, or a combination of both to fit your project needs. Best of all, it is part of the RYOBI LINK Modular Storage System line of products that use the same locking technology to seamlessly connect your mobile and stationary storage needs. Own your space with RYOBI LINK Modular Storage System.