Herabuna rod replacement hakama (sleeves), 2 pieces, body only. Inner diameter: 9.8mm, 11.5mm Length: 245mm Cotton thread grip Includes common insertion plug Material appears to be carbon fiber. I believe these can be used for both bamboo and carbon fiber rods. The measurements 14.6 at the tip of the smaller diameter and 17.3 at the tip of the larger diameter likely refer to the length in shaku (a Japanese unit of length), but the original compatible rods are unknown. Are there any users who can utilize these with the above dimensions?