Eco-Block's units are shipped flat and assembled on the jobsite to make blocks of any width, in 2-inch increments. They feature five connector locations that allow for rebar placements wherever specified. This also allows contractors to add more webs within the wall system where concrete pressure is higher and at places where more frequent rebar placement is needed, such as around window and door bucks. It claims to be the environmental leader among manufacturers with 40% recycled materials used in the manufacture of its webs. Eco adds that it has manufacturing sites within 500 miles of any jobsite in the United States and will provide onsite training to help new crews get started.