Using this fertilizer distributor kit is easy. First, start by assembling the three main buildings one by one. Follow the instructions to attach the separate electrical boxes, furnace inlets/outlets, and the non - working security lights. When you're done with the buildings, use the included parts to build the two fertilizer nurse trailers. Place the colorful printed signs on the appropriate spots. As for placement, you can set it up as a free - standing structure or integrate it into a larger farm supply area on your HO layout. For maintenance, keep it in a dry place to prevent any rust on the metal parts. If there are any dust or dirt on the molded parts, you can gently wipe them off with a soft cloth. Be careful when handling the small parts like the signboard to avoid breakage.