Luhr-Jensen Lake Trolls attract fish to your trolling rig. Beer Can has blades that revolve in opposite directions to eliminate twisting. The 30 has a rudder and two No. 2 and two No. 1 blades. The 20 has a rudder and two No. 2 blades. Sizes: 20, 30. Colors: (103)Nickel/Silver Prism, (501)Brass/Gold/Prism-Lite. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Attractors.