Cobra Ridge Vent, Is A Low-Profile, Singler Layer, Non-Fabric Cover, Shingle Over Ridge Vent, On 1 20' Coil, 10.5" Wide, 5/8" Thick & Rated at 14.1 SQIN/Linear Foot Of Net Free Area, Works On Roof Pitches 2/1 To 20/20, Has 2 Coils Of 1-3/4" Coil Nails...