Gridless Revolution's new EZArray system is designed with YOUR PROJECT in mind. An alternative to massive heavy and expensive framework, the EZArray is a totally customizable solar panel ground mounting system. The system is designed around 3 basic modules: A vertical pipe with a 1/4" welded steel bracket and mounting hardware A horizontal span pipe Solar panel mounting rails with attachment straps and mounting hardware These 3 components allow our EZArray to be customized for any project. When ordered as a complete set, all hardware (even bolts to mount the solar panels!) is included. The only additional thing you need is concrete to set the vertical pipes. Whether your project requires 2 solar panels or 1000 solar panels, 100W panels or 325W panels, the EZArray has you covered. Why ground mount? Ground mounting solar panels (as opposed to roof mounting) has many advantages. The most critical is the fact that roof penetration is not required. Any attachment to a building's roof has the potential to leak. Secondly, ground mounting allows for extremely easy maintenance as panels are usually mounted about 5-6 feet off the ground. And lastly, any fire danger can be isolated to the solar panels only, and not the actual business and/or personal property. Note: Due to our ongoing efforts to always offer free domestic shipping, THIS ITEM WILL ARRIVE IN SEPARATE SHIPMENTS. The shipments may or may not arrive on the same day(s). Please contact us if it has been over a week since you received one of the shipments and you are still missing parts.