Flies look outstanding when our durable Goose Biot is used for the flys legs, tails, antennas and bodies. Goose Biots provide great body segmentation, and is the key ingredient for many popular patterns; such as Prince Nymph and Blue Wing Olives. Great, natural looking colors available. Per 4 strips. Colors:Black, White, Brown, Olive, Tan, Amber. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Feathers.