The Good Buddy® II Duct Rodder has increased rod length for longer runs. Oversized wheels support weight of longer rod. The Good Buddy® family of rodders will rod or fish conduit 2-4 in. in diameter. For 3/8 in. rod, including manhole-to-riser, riser-to-riser, cable vaults & large conduit runs. Round, flexible rod slides easily over wires in occupied conduit.