Witonics Pack of 5 GDC 6.3A 250V Slow Blow (Time Delay) Glass Fuses 5X20mm T6.3A, 6.3 Amp 6.3A T6.3a 250v, 250 volts (also replaces 125v) This package has 5 pieces Dimension: 5 mm (3/16") x 20 mm (3/4") 6.3A 250V Slow Blow (Time Delay), Glass Fuses