FIREHOLE STONES BUG BAND – The bug band is a slim specialty bead that is made of fully machined brass. As an integral part of the weight management system the Bug Band has several purposes. The most common use of the Bug Band will likely be the immediate addition of a hotspot behind the bead of your fly. Their size, shape, and construction also allow them to be added to any part of the fly, should you require intermediate hotspots, while maintaining the profile of the fly you are tying since varying sizes can be added anywhere in the fly profile.