The Guardhouse mint set heavy duty box measures 10 x 6.81 x 3.62 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 re-enforced tape filaments, which give the box extra strength and durability. Guardhouse heavy duty boxes are ideal for storing, shipping and transporting. Boxes are made in the USA.