These lines for the CLICKBAR and TRUSTBAR include: 1x pair of spare adjustment lines 20cm 1x pair of spare adjustment lines 30cm These spare adjustment lines are designed to balance out differences in your line lengths. If your back or front lines are shorter than the other lines, you can compensate for this difference with the adjustment lines. After replacing the lines, it’s important to check that all lines have the desired total length. When the depower is fully open, they should all be the same length.