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