Our plastic covers are made of a polycarbonate, galvanized colored plastic and posses UV protection which will not crack or melt due to weather conditions. Our covers are easy to install, and best of all, when attached, the screw is counter-sunk to help prevent theft. S&C Handhole Covers, LLC is dedicated to bringing bright ideas to light. Our company is committed to continuous improvement, which results in high quality, low priced products. www.schandholecoversllc.webs.com