Straight Magic Shop's Le Paul Envelope (leather envelope). Includes a URL for the Straight Magic Shop's original explanation, plus Paul Le Paul's explanatory booklet as a bonus. Also, four self-made envelopes with perforations, as introduced in the explanation, are included, so you can practice and perform immediately after purchase. Although there is some wear and tear due to the leather product, it works fine for performances and can still be used for a long time.