GMA 20A 250V Fast Blow Glass Fuses 5x20mm (Pack of 5) 20A F20A 250v Glass, 250 volts (also replaces 125v) This package has 5 pieces Dimension: 5 mm (3/16 inch) x 20 mm (3/4 inch) Glass Fuses, 20A 250V Slow Blow (Time Delay Fuses)