This tackle storage box has several advantages over some others. The door can open left or right by rotating the box 180 degrees. The TK-6 holds 5 Plano 3640 waterproof boxes. Constructed of 100% marine-grade polymer for a lifetime of use it also includes our exclusive no-screw-seen stainless hinges. Another option is a locking latch if desired. Use your own Plano boxes or order some new waterproof boxes if needed. Dimensions - cut out 11 5/8 wide x 12 1/8 tall- overall 13 wide x 13 5/8 tall x 8 1/2 deep. Need a different size? we do custom sizes. Lifetime Warranty. Plano boxes are not included.