HO-SCALE DOUBLE CUT STONE PORTAL - Realistic detail. High density casting. Outer Dimensions: 8" Wide x 5-1/4" High. Inner Dimensions: 4-3/4" Wide x 4" High. Assemble with Woodland Scenics Foam Tack Glue (WD1444), Lightweight Hydrocal (WD1201), or Scenic Glue (WD0190). Color with liquid pigments (WD1215-WD1223). Instructions included.