Check the listing for details. Simpson Strong-Tie 4X4 Retro-Fit E-Z Base. Color: Black. Listed at 36.56 USD. Replacing an entire fence can be an expensive and difficult task. Simpson Strong-Tie offers a line of products designed to help make repairing and reinforcing fence posts easy and economical. Allows easy installation of 4 x 4 wood posts on existing concrete. Material: 12 gauge Finish: Black powder coat Allows easy installation of 4x4 wood posts on existing concrete Attach post to E-Z Spike or E-Z Base with 8-1/4" SDS screws or 1/4" HDG lag screws Attach post to E-Z Mender using 6 HDG nails or screws per part. Replacing an entire fence can be an expensive and difficult task. Now it's easy for you to get your fence back in shape and your home back to looking its best. Simpson Strong-Tie offers a line of products designed specifically to help you make some of the most common fence repairs, easily and economically.Easy to install on existing concreteBlack powder-coated steel construction for reliable strength and decorative finishApproved for installation with the Strong-Drive SDS Connector screwBlack powder coat for a decorative lookNominal post size: 4x4