| Ø | ebony | rosewood | beechwood |
| mm | 21 cm | 21 cm | 21 cm |
| 3,00 | K0300-021E | K0300-021R | K0300-021H |
| 3,50 | K0350-021E | K0350-021R | K0350-021H |
| 4,00 | K0400-021E | K0400-021R | K0400-021H |
| 4,50 | K0450-021E | K0450-021R | K0450-021H |
| 5,00 | K0500-021E | K0500-021R | K0500-021H |
| 6,00 | K0600-021E | K0600-021R | K0600-021H |
