MULTI-SCALE CUT BLOCK STONE WALL - Both O/HO-Scale prototype construction. Cut block stone retaining wall. Primer gray tone. Rigid urethane features the unique dovetail. 12.5" x 5" approx. 1/2" thick. (Does not match the 'Pennsy'-system). Also available in 'Flexi' - See FL7150. CLICK HERE!