Small Boat Controls & Accessories Harken® Small Boat traveler controls allow installation of 2:1 to 4:1 purchases. Compact, high-strength Carbo AirBlock® components combined with Micro Carbo-Cam® cleats keep traveler weight minimal. Color code cleats using 424 Flairleads. For angled cleating, install the 372 X-treme Angle Fairlead. The 384 Traveler block features high-load composite bearings to handle wire and high-strength line. Use with the 382 Radial Traveler car and other Small Boat cars to configure a Radial Vang. Don not use as mainsheet traveler. Use for: 2:1 to 4:1 purchsaes