Using this product is easy. First, pick a straight stretch of your HO scale track. You don't need to cut or replace the existing track. Just assemble the parts for the crossing as you like - you can build two single crossings or one double - track one. Place it along the track and your trains will stay on course. When it comes to styles, choose the one that suits your era - whether it's steam, diesel, or modern. Be aware that the Code 83 or Code 100 track it fits with is sold separately. For maintenance, keep it clean from dust and small debris. If you want to customize it, use the molded cut lines on the underside. You can also pair it with Cornerstone Street System paving, but remember those are sold separately too.