The Monster Block Advantage   Largest Block on the Planet Set 40 Sq. Ft. of wall per block saving time and money! Easy Installation Replace manual labor with machine power.  Much faster than stacking one small block at a time by hand. Engineered System Monster Blocks have been engineered to use an anchor tieback system  which allows for less excavation and more savings to the installer. Tiebacks are only needed for walls taller than 10'  Colored Walls  You can stain the blocks any color you like after you have built the wall Built in Fence Post Holes The top cap block can have a 2" pipe insert which works great for the 1 7/8 chain link line posts! Built to Last At over a ton per block they will stay where you put them!