The Box Envelope Die Set is part of the Once in a Lifetime Collection from Planner Essentials. This set includes a box envelope, tags, and banners with fun text details, including birthday, for you, and love it. This interactive envelope will be your go-to element for storing photos, tickets, and other memorabilia. This set includes 26 thin metal dies, the largest of which is approximately 6 x 6 (15.2 x 15.2 cm).