These are small envelopes made from design paper, about the thickness of origami paper. There are 57 envelopes in total: 10 each of 4 different patterns (dinosaurs, astronauts, etc.) and 17 random patterns with English letters. ⭐︎Image 3⭐︎ Envelope Size Width: Approximately 7cm Height: Approximately 11cm (excluding the flap) Total Length: Approximately 13.7cm (measured at the longest part of the flap) The length of the flap is varied to show the color of the back of the design paper. There may be slight variations in the width of the curved parts of each envelope. ⭐︎Image 5⭐︎ Envelope Size Width: Approximately 7cm Height: Approximately 12cm (excluding the flap) Total Length: Approximately 14cm (measured at the longest part of the flap) This is a standard flap design. All items are handmade. I try to pay attention to detail, but there may be slight differences of a few millimeters in the size of each envelope. Please understand that these are handmade items. #TOY's Handmade