Thank you for viewing. The size is approximately 12cm. A brooch pin and a ring for attaching a strap are attached to the back. The strap is not included. Regarding the color of the flower hair ornament, it appears black in the photo, but it is a dark purple. Because it is handmade, I try to be careful, but there may be some imperfections. Please understand this before purchasing. I can add more photos if you would like to see details. Thank you. We offer combined purchase discounts. 2 for 1500 yen. 3 for 2000 yen.