The Ultimate Tuff Tainer® is as it's name states... ULTIMATE. Not only is this versatile box WATERPROOF but it's also RUSTPROOF with the addition of Flambeau's Zerust® The WP4005 has 5 fixed compartments and adjustable dividers. Sporting a watertight O-Ring seal, secure locking latches, rigid design these boxes are ideal for storing water sensitive gear. Available in 8 sizes and variations you'll never need another utility box again.