Material: Zinc alloy & Plastic. Feature: 1> A complete assortment of mini blade type fuses in the six most commonly used ranges 2> Fast acting to prevent damage to wiring 3> Color coded for easy amperage identification 4> See-through covers for quick detection of blown duse made from transparent pes with zinc alloy insert 5> With organized storage case Size: 1.9x1.9x0.5cm