Bosch Excel+ 41924 Wiper Blade - 24" (Pack of 1) Features exclusive DirectConnect one-step installation system. Covers: Pin arm(6.35mm), Hook arm (9x3, 9x4) Specially blended fx dual rubber compound for crystal clear visibility Enclosed metal tension spring for improved all-season wiping performance The wiping edge with harder rubber resists wear Heavy gauge steel frame for extra durability