Review on Optimized 30-Minute Industrial Chic Hourglass by Deb Wach

This hourglass is very beautiful and functional. I calculated how long the sand runs for 31.5 minutes. It's well made and I didn't notice it tilted or unbalanced. The base is a good weight and the glass is quite thick so I hope it doesn't break. Side knobs make it easy to adjust the hourglass's rotational density. I haven't had any problems with sand clogging, but I don't think it's suitable for ultra-humid areas (like a bathroom or sauna) where moisture can get in. It seems a bit expensive but that's ok.