The Guardhouse mint set heavy duty box measures 10 1/2" x 7 1/4" x 3 13/16" and accommodates up to 30 mint sets, 25 modern mint sets and most other modern commemorative sets. Manufactured with a high quality textured exterior, the Guardhouse mint set heavy duty box features reinforced tape filaments, which give the box extra strength and durability. Guardhouse heavy duty boxes are ideal for storing, shipping and transporting.