LEKI Nordic Walking Supreme Nordic Pole Nordic Trigger grip / strap: LEKI's adjustable, releasable Trigger Super Lock System (SLS): the strongest pole locking system available as tested by TUV Rubber Fitness Lite tips: specifically designed to provide traction needed for Nordic Walking technique Carbide Flextips: concave, cylindrical tips offer secure hold when Nordic Walking off road Sizing - fully adjustable size range of 100 - 135cm fits walkers of all sizes and ages