5.5 mm Cylindrical Premium Yttria Stabilized Zirconia YSZ Milling Media
12.7 mm (1/2 inch) Cylindrical Premium Yttria Stabilized Zirconia YSZ Milling Media
10 mm Cylindrical Premium Yttria Stabilized Zirconia YSZ Milling Media
7.5 mm Cylindrical Premium Yttria Stabilized Zirconia YSZ Milling Media