I need them as a spacer in my charger. I have one but I'd like a second. I had been using a bolt but it doesn't have as smooth a contact surface as I'd prefer. That one at BJ says not to use it in a charger, not sure why. Maybe it's just a wire through the middle? The solid one I have works fine. Malkoff has nice solid Al ones as well but it would be $5 plus $8 shipping which seems a lot if that's all I'm buying. I was hoping to get one cheap from someone who doesn't need it.