RollNLock Tutorial ENG

How to use the RollNLock :Ultra-light pulley / rope clamp (only 80 g!) designed for work, rope climbing maneuvers, rescue and self-rescue situations. Facebook:   / climbingtechnologyitaly   Youtube:    / climbingtechnology   Website: http://www.climbingtechnology.com Blog Team CT: http://teamctblog.climbingtechnology.com Google+: https://plus.google.com/u/0/b/1039310... Twitter:   / ctitaly   Instagram:   / climbingtechnology