Hi there!
The first time I bought some, the man who loaded it told me he would have glass stuck in his tire treads when he got home. The roads at the dump had glass mulch as their "gravel." He didn't seem to have a problem with it. There were cars and trucks going all day out there over the glass. It's about the same size as gravel if that helps...and the first time I used it, I put it on top of the gravel on the pathway.
