I have a 510 cartomizer that I picked up from a PIF some time ago, but I dont know what kind it is or how to fill it. Its a bit longer than a Boge 510 soft-cap. Its a little thinner too. The end is made of hard, black plastic. When removed, theres another layer of black plastic inside with two small holes on the outer edge and the number 4 pressed into the center. The cartomizer is actually black (the color isn't just a sticker).
Any ideas?
Any ideas?