Thank you for viewing. This is a one-touch hanhaba obi made of cotton fabric. The otaiko is designed to be a karuta musubi, so other knots are not possible. It is more stable if you secure it from above with an obijime or sanbu-no-himo. Size: Maehaba (front width): Approximately 16cm Dohari (waist circumference): Maximum approximately 99cm Minimum approximately 76cm