This is a remake of a karuta-musubi obi (a type of obi knot) made from a komon kimono with training. The material is unknown, but it appears to be synthetic fiber. The short red feather appears to be cotton. Obi width: Approximately 15.5 cm Karuta section: Approximately 37 cm Waist size: Up to 100 cm Obi締め (obi cord) is not included. Align the karuta section with your back, wrap the obi around your waist, and attach the end of the obi to the karuta section using the pre-attached Velcro. Then, attach the included Velcro. We recommend using an obi締め (obi cord). This is a handmade remake item created by an amateur. Please consider this before purchasing. Thank you for viewing.