For the Fisherman who is tired of scaling fish by hand after a good day of fishing, and for the person who is tired of cleaning scales off the walls, floors, & clothes. The "Tumble Drumm Fish Scaler" is an investment that will make that unpleasant chore of scaling fish, easy and clean. This automatic fish scaler is very portable, easy to operate and will super clean your fish indoors or outdoors with absolutely no mess. Patented Design To operate, simply lift the latch to open the door. Then pour approximately 3 gallons of water into the tank of the scaler. (The water level should be about 1/8" up from the bottom of the scaler drum). Insert about 20 to 30 fish of comparable size - approximately 9" to 10" in length. Close, latch the door, plug unit into a standard 120 volt grounded outlet, and let it run for about 10-20 minutes. After the fish are scaled, simply lift the drum out, open the door, and pour the fish out. The scales will wash through the larger holes in the drum and sett.