Observation post bunker made from scratch with insulation foam board. Size is 5inch l by 5inches w by 4.5ish inches h. Can hold up to possibly five marines is squished in with out the light and crate inside. Comfortable for three marines. Painted with army painter warpaint and apple barrel greys and stone grey. Has a watered down brown wash for weathering. Based upon video tutorial by TheTerrainTutor Let's Make - foam bunkers