it was a cow panel ,i got the idea from a clint locklear video . i will not try it again ,to heavy to drag very far for not very good results. the beaver rolled out of their run i found it on its side just out of the run ,the same beaver was plugging up my 330 with sticks ,i finally caught the problem beaver in a number 5 bridger set in the bottom of the run ,where it entered the den,i wound up pulling 4 beaver out of that set.