Trim-A-Slab is a product made from exterior-grade materials designed to replace rotten or missing wood often found in driveways and sidewalks over 5 years old. Trim-A-Slab is extremely easy to install. You will need pruning shears, or one of our expansion joint cutters to do the installation. You can get a quote, have the joints cleaned, and debris hauled away, and get Trim-A-Slab installed, usually in just a couple of hours. Contact us. http://trim-a-slab.com/