I've been collecting scientific models like this for over 20 years, and time and time again, Stirlingkit has proven that their models are well engineered, expertly manufactured and beautiful to look at.
Arrived in good package, no damage. Runs great with rubbing alcohol. Good speed and motion for motor heads to be amused for a long time. Seems well made and would buy from this seller again.
This is a wonderful example of craftsmanship, an engineering marvel for anyone who appreciates a science project that has been done with perfection in mind. I wish I could say that it was me who created it.