Specifications include, but are not limited to: Ea Master 50 6.5' WITH side doors Include 1 x interior 40''LED light - 40''LED Light & magnetic switch in side doors - Shim Kit - Special wiring preps. Specifications: Double walled 5/8 plywood floor, Single Cargo Door with 40" LED light. Construction: ONE PIECE CONSTRUCTION (uni-body) is accomplished by using the same fiberglass material as in the body to marry the top of the unit to the bottom. We do not use an aluminum strip with rivets. 1 Ea Shim for: 2019 Ford F350-6.5. 1 Ea Optional Cargo style rear door - Master 50 only - included 1 x 30'' LED, Doors are double walled and have automotive hinges and gaskets to keep body air tight and secure. 1 Ea MASTER Slide 48''x 79'' Up to 2000 lb. capacity. Deck and sides included. For installation in Master unit 6.5. 1 Ea MASTER Slide - Optional Adjustable sliding tie downs (4).