Whimsy Stamps Die Collection "A2 Envelope Builder Die Set" Our A2 Envelope die will help you create your own envelopes, which fit A2 cards perfectly (finished size is about 5.75 x 4.4"). Our ultimate envelope die set includes 11 individual dies - the front and back of the envelope, an envelope liner, postage stamp shape, and multiple stitched and embossed shapes for address labels, and/or peek-a-boo windows for even more envelope making fun. And our 6x6 papers (sold separately) make perfect envelope liners too! Please note: this is a larger die and was designed to work on regular-sized or larger sized cutting machines, some of the smaller machines will not fit a die of this size. Extended cutting plates are helpful but not required. Thin metal dies perfect for all your card making and crafting projects. Must be used with a die cutting machine, such as Cuttlebug, Big Shot, or Wizard. Please note, that it is common for long and/or thin die shapes to bend or warp when used in die machines. This should not cause any issue with the effectiveness of the die when used properly.