Here is a picture showing the two [link=http://www.qualityrcproducts.com/miraclefueler.html]Miracle Fuelers[/link] from [link=http://www.qualityrcproducts.com/home.html]Madison Components[/link]. I really like these fuel dots because you merely twist the caps to lock and unlock instead of pushing and pulling on them, which is not really good for the cowl.