To correctly use an insert for your banger you will heat your banger up for 10-45 seconds, depending on your torch. You will put a little bit of concentrate in the insert. You can fill the insert before you heat your banger as well. Once you have the insert with a dab and you have heated your banger, you will then drop the insert into the banger. As the heat migrates from the banger to the insert, you will see the concentrate start to melt and boil. Once this happens, place your carb cap on banger and inhale.