0.25mm,0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, ... .6mm, 0.65mm, 0.76mm Lead BGA Soldering Ball Type0.25mm,0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm ... : >/= 1.33Special size: diameter lower than 300um also available 0.25mm,0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm ...