Ferreras Fly WalletThese fly dispensing wallets are hand sewn in Spain and they are very popular with Spanish competitors. The dispenser comes with Velcro on the back so that you can attach it to the exterior of your pack. It can be attached to a retractor and slip it in an external sleeve on chest pack and then use the Velcro to fluff poly yarn wings on dry flies. This dispenser is a time saver and made the job of putting new flies on a bit easier.