a moving boat, and letting the motion of the boat pull the bait through the water. In theory, for light and medium freshwater gamefishing, any casting or spinning rod (with the possible exception of ultralight rods) can be used for trolling. In the last 30 years, most manufacturers have developed a complete line of generally long, heavily built rods sold as "Trolling Rods", and aimed generally at ocean anglers and Great Lakes salmon and steelhead fishermen. A rod effective for trolling should have relatively fast action, as a very "whippy" slow action rod is extremely frustrating to troll with, and a fast action (fairly stiff) rod is generally much easier to work with when fishing by this method. Perhaps the extreme in this philosophy was reached during the 1940s and early 1950s, when the now-defunct True Temper corporation – a maker of garden tools – marketed a line of trolling rods of length made of tempered steel which were square in cross section. They acted as excellent trolling rods, though the action was much too stiff for sportsmanlike playing of fish once hooked. As Great Lakes sportfishing in particular becomes more popular with each passing year, all rod manufacturers continue to expand their lines of dedicated "trolling" rods, though as noted, for most inland lake and stream fishing, a good casting or spinning rod is perfectly adequate for trolling. Telescopic rods Telescopic fishing rods are designed to collapse down to a short length and open to a long rod. rods can close to as little as . This makes the rods very easy to transport to remote areas or travel on buses, compact cars, or public buses and subways. Telescopic fishing rods are made from the same materials as conventional multi-piece rods. Graphite, carbon, and sometimes fibreglass, or composites of these materials, are designed to slip into each other so that they open and close. The eyes on the spinning rods are generally, but not always, a special design to aid in making the end of each section stronger. Various grade eyes available in conventional rods are also available in telescopic fishing rods. The eyeless Tenkara style rods are also of this type and are typically made from carbon and/or graphite. Care for telescopic fishing rods is much the same as other rods. The only difference being that one should not open the telescopic rod in manner that whips a