The "butterfly screws" used on many drum parts and stands are designed to be easily turned by hand. However, they are also used on important parts that are subject to significant stress. It's not uncommon to tighten them too much and hurt your hands or fingers when loosening them again. This often causes delays in setup, especially in rental studios. That's where the "Drum Gym Easy Winger" comes in! It can easily loosen butterfly screws that have been tightened too much!