AGD superbolt, Delrin exterior with stainless interior, used. Don't know if these are lvl 10 or lvl 7 but they are known for having the delrin piece coming dislodged from the actual stainless interior. This one has a very slight gap between the delrin body and the stainless base, see photos, so I wouldn't recommend using it. More of a collectors item. Needs a foamie. You can see where the foamie was glued on.