no not cardboard. in a rizla packet (i dont know if you have rizla skins in USA) you have to open out the packet and theres a little green strip of card, perfect for a roach, pull it out and close up the box again.
henrypj Reviewed by henrypj on . roach/filter i was reading about what a roach/filter was and i was wondering how to make one, i read on the internet but i didnt understand it lol Rating: 5