Yale Imori 12mm Climbing Line Single Splice Splice Can be used in two Conformance EN 362 2004 Can be used in two different modes with the flick of a switch: free the cam to allow for immediate insertion and removal or lock the cam to prevent the possibility of accidental releases The PerfectO is a compact true oval carabiner that maintains ease of use Yale's unique manufacturing process offers tree climbers the lightweight feel and performance of a 24 strand line but with the grip of a 13mm This unique blend allows the fibers to be exposed on both the outer sheath and also on the inside of the sheath providing more friction to the inner core which helps to minimize excessive elongation while providing a superior unsurpassed grip for the climber