Its very easy. Quickfix comes as a liquid. You put it in the microwave for 10 seconds and it should be 90 to 100 degrees. It has a temp strip on the side of the bottle.Its a small 2 ounce bottle.After you heat it up just put it in your crotch,I use tighty whities.At the UA after the door is closed just pour the contents in the cup.The most important thing is to practice with it to get the temp right.But its easy.