112PRCAP1 Features: -Roofing nails.-Caps are electro galvanized for additional corrosion resistance and are ring shanked for increased holding power.-The large head is ideal for holding roofing felt, sheathing, poly, and other materials in place that are prone to tearing when attached with a regular nail.-Plastic.-1 lb box. Dimensions: -1" head.-1-1/2" length.