ICON™ 21" Black Wiper Blade (21OE) by Bosch®. 1 Piece. Blade Type: Beam. Installation Type: IC_TopLockNarrow. Replace your original equipment windshield wipers with innovative, top-grade wiper blades that ensure maximum visibility, no matter the weather. Designed to apply more uniform pressure along the entire length of the blade, this wiper blade provides superior all-season performance that lasts.