HT-600 Hot Tips are the replacement spouts and over caps for our Hot Stuff, Super T, and Special T glue bottles. If you are having problems with spouts clogging, first click on the "Tips" link on the side and check out the "Clogging" section to see some clog-prevention methods. However, sometimes you can't control the situation that is causing your spouts to clog. If that's the case, we offer replacement spouts and over caps, two sets per box.