Silblade 218 Silicone Wiper Blade, 18" (Pack of 1) Formulated with a premium General Electric silicone elastomer that offers extreme high strength and resilience Exceeds all Society of Automotive Engineers and Japanese Industrial Standards for wipe quality, durability and ozone and chemical resistance Wipers are patented formulation and process preventing degradation from prolonged exposure to sunlight, ozone, washer fluid and road residue Remains flexible and maintains a superior wipe in extreme temeratures from -80F to 400F Wipers are guaranteed for 5 years