Although our orbee (by Planet Dog - the one that looks like a double scoop of ice cream) has sustained a few minor cracks over the years, it has remained in pretty good shape and JUST last weekend survived me running over it with the lawn mower!!! The crack that I noticed (I believe) was already there. Ruby is not a super heavy chewer but I wanted to share our experience with the survivability of the orbee! Scared the poop out of me when the lawn mower spat it out!!