Used for securing Large fish caught on rod/reel by the tail, this device is helpful in controlling, securing, and landing large fish such as Sturgeon while you remove the hook from the mouth and take measurements. Once secured, the fish can be brought onboard for hook removal and measured for retention or released unharmed. The Fish Tailer is made ready to deploy simply by placing the brass ring over the rod handle. If a fish whips or thrashes it's tail while deploying the device resulting in failed deployment, it can be reloaded instantly for another attempt. It makes securing large fish safe for the Fisherman, and more important, safe for the Fish.