PIAA Si-Tech Silicone Flat Wiper Blades are a modern, frame-less design that delivers all season performance thanks to the patented silicone infused rubber insert. The design creates more pressure points across the entire length of the blade for streak-free wiping. The flat blade design eliminates snow and ice build-up, and is heat and ozone resistant. The silicone rubber continually reapplies an active silicone coating on the windshield, that promotes water beading and quiet operation.