We just got a call from a older fellow from the midwest. He was 84 and his wife 75. Otter were destroying their pond raised fish. Though they had used body gripping traps to catch one otter previously, the body grippers were difficult to set and of course potentially dangerous, especially for someone of that age. There were a couple of ponds with a connecting channel between them, just the right size for the 12x18x39 beaver / otter cage. Calling to say how happy they were with the results, the first night they caught a 44 inch otter. They reset the trap and caught a second 44 inch otter the very next night. These traps are so simple and easy to use we say, “just add water.”