PIAA 94040 Silicone Wiper Blade Refill, 16" (Pack of 1) Revolutionary beading action, Activated silicon-coating action Highest quality silicone rubber compound Resistant to all climates for extended life PIAA silicone refills are for PIAA Super Silicone wiper blades only. In order to fit other OE and manufacturers wiper blade frames, your blades need to have a square type claw and stop as shown in secondary image. Rubber claw width is 6mm for sizes 12inches up to 22inches and 8mm for sizes 24inches up to 28inches Refills designed to fit Super Silicone, Aero Vogue, and some OE wiper frames