I usually buy the disposable cardboard filters for joints but I saw these and was like I'll give it a shit and omg at first I thought u rolled it and put it in the glass tip but then I realized you could roll it into the joint and it's the beat joint I have ever smoked. They are thick and durable, I lefit opened the cute metal tin they came in and took one of the 5 colorful (green, blue, clear, black and pink are the colors I recieved) tips out of the foam insulation it was put in to keep them from clunking around or getting b3oken in the shipping and I immediately dropped it on the sidewalk and not a chip, or scratch, I was sure it would have broken but they are really durable and thick, I love them, they are easy to clean and easy to use and make them 10 times better then the cardboard ones. Buy these if you smoke joints or rolliea u won't regret it.