REELOQ: The cable pull only locks when the rope is fully extended. To retract the rope, you also have to pull it once. If the cable pull does not lock, please try to pull the rope strongly at different speeds and angles. If the cable pull still does not work, please send us an email to support@reeloq.com and ideally send us a photo/video of the problem - thank you! REELOQ PRO: The cable pull locks at any desired position. To retract the rope, you also have to pull it once.