3500 Neck circumference: Approximately 41cm Width: Approximately 7.5cm This is for adults, but children in the upper grades of elementary school and older can also wear it. It originally uses organza with stitching and sequins. It is not original embroidery. It becomes gorgeous just by layering it on a knit. Uses an industrial sewing machine and a serger. Each item is finished individually, and there may be some imperfections, but please understand that it is handmade. #handmade #handmade collar #organza