These are lovely steps, much better looking than the photos both on Hobbylink and on the manufacturer's site. It is hard to remove such small amounts of flash as may be present due to the meterial. So too it's hard to get paint to stick. Ideally, one would sandblast these steps to remove the sheen, and then abandon all hope of painting them. If a model did need color, the sandblasting would still help a bit, but paint still won't take much handling. That said, they're a good choice for cars that will be handled, and one whole lot easier than fabricating them.