Trico 71-180 71 Series Heavy Duty Wiper Blade Refill for 63 or 67 Series Trico Blades, 18" (Pack of 1) 18 inches length Secures in blade with a secure latch lock Steel bridge rail spine for strength and flexibility Durable natural rubber wiping element. Type A refill These refills are manufactured to fit the original equipment wiper assembly, If this assembly has been replaced with anything other than an OE product the refill may not fit properly 18 inches length Secures in blade with a secure latch lock Steel bridge rail spine for strength and flexibility Durable natural rubber wiping element Type A refill