One-piece tension cord (aka "bungee") for XT model PALs and earlier.
Two sizes are available, 90mm and 280mm, and both should purchased at the same time.
It is recommended these be replaced annually, as part of your preventative maintenance program. These cords should also be replaced if you notice your XT or legacy model PAL has started to bend syringe needles.
Estimated lead time is 3-14 days.