This is one 30cm (12") male universal servo lead from ProTek R/C. These are excellent servo leads made with thick, high quality 22awg wire for maximum current carrying capacity and strength. The male plug installed on these extension leads are JR style connectors and will only work any radio system. When plugging JR style connectors into a Futaba female connector, be sure to check for the correct polarity.
ProTek R/C is an AMain Sports & Hobbies brand.