MULTI-SCALE CUT BLOCK 'FLEXI' WALL - Flexible foam wall. Both HO-O-Scale cut block retaining wall with cap. Dovetail edges. Gray primer base finish. Weathering recommended. Dimensions approx. 12.5" L x 5" H x .5" Thick. Stones are approx. 7/16" to 1/2" wide by 3/16" high. Compatible with rigid foam counterpart FL4150. CLICK HERE