Order Includes Free Pair of Gloves and (10) 1.5" Roofing Nails. (10) 1.5" Copper Nails Included with Copper Base Flashing Fits any roof pitch to 45° Tested For Ultraviolet, Ozone, And Weather Resistance Elastomer Collar Heat Tested To 180°F 3N1 Fits 1 1/4'' - 3'' Vent Pipe, 3N4 Fits 3" - 4" Vent Pipe, 4N1 Fits 1 1/4'' - 4'' Pipe Roof Pipe Flashing for Shingle Roof. Metalbase flashing is 24 Gauge Galvanized Steel, available in Silver, Black, Brown, and Grey. Hardbase Plastic flashing available in size 4N1. Metal base flashing available in sizes 3N1 & 3N4. Copper base flashing available in sizes 3N4 and 4N1. Each order includes a free pair of nitrile coated gloves and (10) 1.5" roofing nails, or (10) 1.5" copper nails for copper base flashing.