1.universal wiper blade 2.dust wiper blade 3.windshield wiper arm 4.special type for bmw benz ford peageot etc1. Specifications of Frameless windshield wiper1) Closely sticked to curved glass and with better power distribution, what's more, the blade with carbon diaphragm will make cleaning quietly, more fluent and clean.2) The design is based on the Aerodynamic. The blade will not lift by the airflow so as to make sure about the cleaning.3) There is a great improvement in the structure of windshield wiper, in which there is a flat and wide bar in the middle, with the function of sunshade and anti-aging.4) With frameless and floating steel piece structure to eliminate the shaking during car moving. Compared with traditional wiper blade, it is much lighter, long-lived and with high adhesion.5) Inside there are rubber piece and spring piece, which are both made of ozone proof and UV-resistant rubber, adapt to different climatic conditions.2. Wiper Blade Material & Size1. Material of steel blade and other specifications.Type of Steel: Carbon steel SK-5.Hardness: HV-460 480.Length: 10"-28.Thickness: 0.80mm 0.90mm.Width:7.00mm 14.00mm2. Material of bracket and other specifications.Type of Steel: Stainless Steel 430.Length: Customerized.Thickness By Width:.3.00mm x 9.00mm.3.50mm x 9.00mm.4.00mm x 9.00mm,3.wiper blade InstallationWith standard joint design, by which no need to change the arm. Remove the old wiper blade and put on the new one. Please clean up the glass before installation.4.wiper blade Maintenance Instruction1)When removing the dust on the glass in sunny day, make sure to spray the glass of water, no dry scrape.2)If there are any other stubborn and hard dirt, you should clean it by hand, since these dirt damage the blade, sometimes even damage the motor.3)The wiper blades should be lift carefully at the back. Please pay attention to that.4)In Winter, you should scoop the flake ice first5.Others14"--350mm 16"--400mm 18"--450mm 20"--500mm 21"--525mm 22"--550mm 24"--600mm 26"--650mm 28"--700mminch12"13"14"15"16"17"18"19"20"21"22"24"26"28"mm300325350375400425450475500525550600650700