I have to give it 1 star, very poor construction, made in China with a lot of plastic parts. This is not professional quality - as advertised. Not at all what I expected. My old Transits are of much better quality and are mostly American steel. As a professional builder, I am very disappointed. i have to return it It's also important to note that the tripod and ruler are not professional quality with plastic clamps and adjustment arms - they definitely won't hold up.