5 sizes: 10 cm/3.94inch, 15 cm/5.9inch, 30 cm/11.8inch, 50 cm/19.7inch and 60 cm/23.6inch in 5 different lengths, with 6 servo extension cables in each length Wide application: these servo extension lead cables are compatible with Futaba and JR servo, and helicopter servo connection or receiver connection, remote control vehicle and remote control vehicle 3-pin design: these servo extension cable connectors have 3-pin and an angle to prevent incorrect installation and convenient use Female to male servo extension cable: female connector on one side and male connector on the other side, which can be connected to the receiver and steering gear of items: The package is equipped with 30 female male servo extension cables, enough to use in different occasions Colour:black+red+white :copper wire Package Contents: 30 x servo extension lead cables Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.