For your consideration, two Zero Halliburton aluminum cases and one aluminum-look hardside case. One of the aluminum cases a very nice Zero Halliburton case with combination lock; outside dimensions are 17.5" x 13" x 6" . The other is a Zero Centurion Elite with a keyed lock (key is missing); its outside dimensions are 16" x 9" x 15" . Both aluminum cases have an empty interior. The third case is an aluminum look hardside case with foam cutouts for a firearm. The case measures 24.75" x 16.25" x 4.5"; it also is missing its key.