These actuators feature a base plate on the coil where you can solder directly onto. You have the option of soldering extension wires to the existing wires or removing the existing wires and soldering the desired length extension directly to the actuator base plate.
Actuators are shown with centering magnets attached for illustration purposes only. The centering magnets are supplied with the actuator but you need to glue them in place yourself. They can be glued in place with a small amount of CA Glue.