HB-1 Muji - Brass
HB-2 Yujo - Brass
HB-3 Shonai - Brass
HB-4 Muji - Silver Plated
HB-5 Yujo - Silver Plated
HB-6 Shonai - Silver Plated
HB-7 Muji - Gold Plated
HB-8 Yujo - Gold Plated
HB-9 Shonai - Gold Plated