This tool dries epoxy-coated flies evenly while rotating them with a motor.Remove the coated fly from the vice and place it between the micro-slit foam of the flywheel. It is designed to last a long time without damaging the wheel, even with saltwater hooks with large barbs. It is battery-powered, so there is no cord that gets in the way on the tying desk.This is a cordless fly dryer that is battery-powered.By continuing to rotate the epoxy-coated fly until it dries, it distributes the epoxy beautifully and evenly.3 AA batteries are required (sold separately). (Estimated operating time: 150 hours)Operating time varies depending on the battery used and the conditions.