The Automatic Fisherman Ice Fishing Base Unit is an inventive tool that combines the convenience of tip-up fishing with the excitement of fighting fish on the jig rod. This fishing base unit is constructed with heavy-duty plastic and features a 22" ruler embossed on the side. The Automatic Fisherman Base Unit is designed to use rods measuring from 24" to 34" in length (rod not included). The base unit increases your catch rate with its automatically engineered set of the hook when a fish begins to swim away. Can be used for catching any species.