We are the original manufacturer of the Lock-Block™ modular retaining wall unit and we have been making them since 1984. We began our operation with one thing in mind: the environment. We started out making retaining wall units from left-over concrete to keep it from the landfill and that vision has evolved and grown in the 33 year span of the company. We have developed a method of turning rubble concrete into reusable aggregates for road bases and producing fresh concrete. This process provides for LEED credits and keeps waste material from our landfills. Now, we have the ability to make Lock-Block™ units with 100% recycled aggregates at any specified compressive strength. We are continually looking for better ways to help our environment and minimize our impact on the ecosystem while providing a top-quality product that is noticed by the construction industry and engineering community around the world. For more information please visit: www.LockBlock.com. To learn more about our technology please visit: https://www.youtube.com/c/LockBlockLtd.