Buckshot magnum....this is def one of the safest stands out there. i told my dad that i wanted a climber for christmas about 4 years ago(i was 17) and he wanted the best and safest stand. He went to the local archery and they told him what to buy. This stand is pretty big but still is managable. It doesn't use a cable or chains, its has a full metal bar which means that these teeth grab extra tight into the tree. I have hunted out of it many of times and have never had any problem with it. They are kinda pricey, around 300 i think but you get what you pay for. check them out and you will see they are solid, safe climbers