These are HO scale ladder back chairs. They are designed to be printed in SWF material, but MIGHT work in colored and polished material.
The legs are as thin as I could make them so you may have one or two chairs with legs that break during shipping. That's the price of going small.
All models arrive unpainted shipped direct from Shapeways. Most have to be cleaned prior to painting. You can get more information at my website:
Dave's Model Railway Stuff (www.davesmrs.com).