Realistic Cut Stone Retainer Walls are made out of Hydrocal. Each package contains 2 sheets. Product number: 82001 from Motrak Models. You may use these for retainer walls or you can cut them up and use them as basement walls. Instructions are included and it will tell you how to cut and paint the wall.

The blocks are 2' x 4' in HO scale. Each sheet is 5-7/8" x 4.3/8". There are many possible places where you can use these.