10 pack 4”x4”x4” Metallic Gold Foil Mailer boxes Gold Metallic Box Design - Glistening gold shine covering the entire outer surface of this lovely, Dynamic box B-Flute Box Corrugated Material with 32 ECT (edge crush test) -offers excellent puncture and crush resistant properties as it is more rigid than the common c-flute box B-flute consumes less warehouse space and is lighter weight to save on shipping -Flutes per Linear Foot: 47; Thickness: 1/8" Made from 100% Recycled Paperboard - 100% recyclable