This is the Sullivan .018x60 U-Control Line. FEATURES: For U-control airplanes using no larger than a .49 cu in (8.03cc) engine Lines are made with seven strands of stainless steel for strength and durability INCLUDES: Two U-control lines with clamped eyelets, plastic storage reel and clip SPECS: Cable Diameter: .018" (0.46mm) Cable Length: 60" (18.3m) jxs 1/13/04 ir/jxs