This solid plastic parking block is made from 100% sturdy recycled material. They provide superior strength and durability while weighing 20% less than conventional concrete blocks. They are easy to install and help dress up the appearance of your parking lot while contributing to a cleaner environment. These parking blocks are virtually maintenance free and never need to be painted. They won't chip, crack or deteriorate from weather or road salts. The predrilled holes make installation simple with the provided hardware.