LEKI Ultralite Carbon Ergometric Poles (Pair) Ergometric grips incorporates the positive angle into the grip, allowing a smaller packing size of the poles (four inches shorter than positive angle shafts Super Lock System offers a secure adjustment hold with the least amount of torque (hand strength required) to offer secure, reliable support Carbide Flextips are concave, cylindrical tips that provide a secure hold when Nordic walking off-road on all terrain and surfaces; carbide is extremely durable while the entire tip is replaceable.