ITEM SNUG-SWP-25, SNUG SWP INSULATOR for wood posts. Insulator rests on 3/4 inch nail surface. Will not tear or crack loose. Flexible base fits round or flat sided posts. Molded of high density polyethylene with UV inhibitors for all weather durability. Extends wire 2 1/8 inches, color: Yellow, Available in Black as special order. Nails included. 25/package.