Powder, I was a little confused myself, but I had to have one since JB said they were so great. Used ours today on a doe. Follow the instructions and it works great. Somehow it cuts the membrane around the anus and then holds onto the membrane so you can pull it out and tie it off(it is already cut). Works slick. You do have to wash it off afterwards. :rolleyes:

"All that is necessary for the triumph of evil is that good men do nothing." Edmund Burke