ITEM NAME:4pcs/set Heater Fast Start Glow Plug Easy Install Durable for Alfa Romeo Features: Suitable For: Suitable for Alfa Romeo, , for Saab, for Vauxhall, for Opel, . A perfect replacement for your old or damage one. Function: Controls current draw for rapid heat of coil, resists corrosion and vibration. Allows for faster engine startups, helps reach optimum temperatures quickly. High thermal conductivity, protects coils from exhaust gas damage. Easy Install: Small and compact. Mini and easy install. Material: Constructed from metal material for high rigidness and good durability. Good Accessory: A good auxiliary equipment used in engine starting process. Specifications: Item type: glow plugs Material: metal Color: silver Quantity: 4pcs Suitable for: for Alfa Romeo, , for Saab, for Vauxhall, for Opel, Package includes: 4pcs x glow plugs Notes: Transition: 1cm=10mm=0.39inch 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement..4pcs x glow plugs. Quantity: 4pcs. Item type: glow plugs. Easy Install: Small and compact. Mini and easy install. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.