The DU-HA Lockbox lets you secure your firearms, plus additional gear and valuables in an unexpected and completely out-of-view place – under the back seat of your truck. This also frees up space in your truck for passengers, dogs, + more gear. The Lockbox is fully lockable with an integrated keyed lock system. Lockboxes are custom made to fit specific year/make/models trucks so the fit is perfect. This also maximizes the available storage area. Fitment Notes: This DU-HA Lockbox is custom designed to fit specific Y/M/M Crew Cab pickup trucks and will NOT fit the Quad Cab. How can I tell if I have a Crew Cab or Quad Cab pickup truck? Crew Cab has larger back door - 42" wide. Quad Cab has smaller back door - 31.5" wide.