Trico 37-179 Teflon Winter Wiper Blade, 17" (Pack of 1) Exclusive wiping edge with Teflon surface protector for longer life and smoother wipe Color strip on wiping edge highlights presence of Teflon Rubber boat prevents snow and ice build up Metal superstructure for strength and durability. Easy to install 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 Exclusive wiping edge with Teflon surface protector for longer life and smoother wipe Color strip on wiping edge highlights presence of Teflon Rubber boat prevents snow and ice build up Metal superstructure for strength and durability Easy to install