Woodland Scenics WC1164 Random Stone Culvert.
Pack of 2.
Use Earth Colours Liquid Pigment to detail culverts in your choice of colours.
Approximate outside dimensions: 1 7/8 inches (length) by 3/4 inches (width) by 13/16 inches (height) (4.76 cm by 1.9 cm by 2.06 cm).