Celebratory Envelope Set: 17 + 1 Envelopes The photo on the left shows a single envelope. The photo on the right shows a set of 20, of which 3 have been used, leaving 17. Suitable for various occasions at shrines, such as prayers for safe childbirth, Hatsumiyamairi (first shrine visit for newborns), Shichi-Go-San (Children's Day), Yakubarai (exorcism), Jichinsai (ground-breaking ceremony), as well as for offerings like first fruits and tamagushi fees. Also suitable for entrance/enrollment celebrations, housewarming celebrations, and thank-you gifts.