All struts are made of structural steel, which ensures adequate strength and stiffness. Each strut is powder coated in black mat, under the paint there is a zinc primer to prevent corrosion Dedicated to: Seat Ibiza, Skoda Fabia, VW Polo 99 - 08 Main advantages and reasons for using struts: stiffening the body better handling of the car in corners recommended for sports suspension improves driving comfort, prevents cracking of the windshield recommended in every older car, prevents the calipers from "collapsing" which prevents corrosion. Dedicated to: Seat Ibiza, Skoda Fabia, VW Polo 99 - 08 Main advantages and reasons for using struts: stiffening the car body better cornering recommended for sports suspension improves driving comfort prevents cracking of the windshield recommended in every older car prevent " collapsing get "chalices