Coastal Plus pantograph arms are constructed of 304 stainless steel with dual springs. They are easily adjusted in length to fit most windshields & can be mounted on all coastal wiper motors, as well as many other brands of wiper motors. This wiper arm is compatible with W10/12 wiper system.Dual spring assembly (springs mounted in each wiper arm)Can easily adapt to standard coastal wiper arm mounting plateSolid blade connectionAccepts only Roca wiper bladesFit most motors with 13.75mm shaft diameterAccepts washing jet EX21000.326Constructed of 304 stainless steel & UV-stable syntheticsMaterial: 304 Stainless SteelColor/Finish: Electro-PolishedCompatible With: W10/12 Wiper SystemShaft Diameter: 13.75mmApplications: It can be mounted on all coastal wiper motors, as well as many other brands of wiper motorsTip Type: FixedSeries: Coastal Plus