I purchased this for my sixth-grade graduation ceremony. It was a 3-piece set consisting of a blazer, skirt, and white shirt. Although it was a set for girls, I think it would be okay for boys too, considering the combination. I used the blouse and skirt, but I didn't use the blazer because I used the new junior high school jacket. I've stored it since then, and I don't remember if I used it once or not. I would appreciate it if someone who understands that it has been stored at home would purchase it. For those who can use it for formal occasions, entrance exams, presentations, etc. As shown in the photos, spare buttons are also included. Please consider the following measurements: ↓↓↓ Shoulder width: 36 to 37 cm Length: Approximately 59 cm from the collar seam down. Sleeve length: Approximately 51 cm. Width: Approximately 45-46 cm when laid flat under the armpits. The size label has faded over time, so please judge by the actual measurements. It is fully lined, and the fabric is relatively thick and well-made. I believe the fabric is 100% polyester. Thank you.