The Bosch Evolution Wiper Blade line now include 13" and 15" options. Beam blades, also known as bracketless blades, are designed without the metal brackets, joints or hinges found on conventional wiper blades, which decreases ice and snow build-up during winter driving. The beam technology applies uniform wiper arm pressure along the entire length of the blade, and an integrated, symmetrical wind spoiler helps hold the blade to the windshield to resist lift-off at high speeds. According to the company, Evolution Wiper Blades provide 97 percent coverage of domestic, Asian and European vehicles. The Bosch Evolution line of wiper blades also includes OE specialty wiper blades in 17" through 28" lengths.