Simpson Strong-Tie connectors make projects easier to build while making them stronger & safer. They are engineered & tested to perform & are manufactured to the highest quality standards. Whether working on a home project or building a structure to comply with building codes, go with the choice of engineers & contractors, go with genuine Simpson Strong-Tie connectors. The CPS is a Composite Plastic Standoff designed for increased concrete surface area. It also keeps moisture away from the bottom of the post.