Review on Classic Hourglass Timer - 60 Minutes White Sand with Black Wooden Frame by Tim Camp

I bought this because I like to work 1 hour and then take a break. In fact, the waiting time is about 1:15. Not critical, but would I prefer them to be a bit more specific? Otherwise I would give them 5 stars. Finding a good hourglass has become a real quest and this is the third one I've bought. stop completely, the sand will get stuck. The smaller ones tend to do that. This is a good size but not so big that it takes up space on my desk. It has a good flow of sand that I can actually see and is reasonably priced so I'll work with that.