Step 1

Move the handle down the rope to expose the snap-lock.

Step 2

Pinching the snap-lock's two halves with both hands, pull it hard to unlock it.

Step 3

Move the snap lock to the desired length and pinch the rope to prevent the male part (the one with teeth) from moving.

Step 4

Push the female snap-lock onto its male counterpart and lock them into place. Slide the handle back in place.

Step 5

Cut the excess cord with a pair of scissors, leaving roughly 2cm spare cord after the snap-lock.