ITEM NAME:20 Pcs 250V 3A 5 x 20mm Quick Blow Glass Tube Fuses B3B5 20 Pcs 250V 3A 5 x 20mm Quick Blow Glass Tube Fuses B3B5 250V Rated Voltage, 3A Rated Current, 20 x 5mm Specification, Fast Blow Glass Tube Fuses. 20 pieces glass tube fuses with quick blow function. Fits for electric equipment. Need professional knowledge to use this product. Fuction: Fast Blow Diameter: 5mm / 0.197"; Length: 20mm / 0.787" Material: Glass Weight: 10g; Package: 20 x Glass Tube Fuses Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.