Keep your flies a little more organized when you add the fishpond Beavertail Fly Patch to your kit. Easily attaches to your vest or pack with Velcro. Molded construction stands up to abuse while high-vis foam makes picking even the smallest patterns a breeze. 3.5 x 2 size holds several dozen flies while maintaining a small footprint. 3.5L x 2W. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Fly Boxes.