Our solid parking blocks are our original design made to deliver strength and durability. Our blocks and speed bumps are virtually indestructible, user-friendly, easy to install, maintenance free, lightweight but stable, chemical and weather resistant, UV stabilized and lifetime warranty against breakage and cracking. Our solid parking blocks are the original chemically formulated plastic block that offers the durability you would expect from a product made in the USA. There are three solid sizes available are Standard, Compact and Deluxe. Available in a variety of colors and sizes.