It's a proven fact that flies with eyes might possibly catch more fish than those without. Yeah, flies without eyes catch fish fine. But eyes make them look better and it does seem like the ones with eyes sometimes work better too. These eyes will look great on your flies.
These eyes have an adhesive backing but if you want them to actually stay on attach them with Zap-A-Dap-A-Goo or another high quality adhesive. 20 per pack.