The Ripper Tooth has been designed for easy installation and is pre-painted to match your tractor. This is a bolt on unit, shipped complete in a box with all hardware included. The ripper tooth is specially designed to be very easy to install using common hand tools to pin/bolt on. The ripper tooth is made from hardened steel and is great for ripping through frozen/hard pack soil, tree roots, and any other tough job you have. The trencher option is a bolt on to the ripper. Like the ripper it is designed for simple installation and ships complete in a box with all hardware included. This is truly a must have for fast and efficient trenching.