MOUNTAIN YOYO "Discovery 6061" Flip Lock Light Weight (Aviation Aluminium Alloy 270g, 9.5oz) Walking Pole Trekking Pole Walking Stick Telescoping Adjustable Men Women MOUNTAIN YOYO "DISCOVERY 6061" series is made of Aviation Aluminium Alloy 6061, each pole weighs right under 9.5oz (270g) 3-Section telescopic pole. Patented fail safe "one second" flip locking mechanism. Adjustable length from approximately 25.6 " to 53.1 " (65 to 135cm) FREE ADDITIONAL TIP PRODUCTOR AND INTERGRATED SNOW DISK, LIFETIME WARRANTY ON PARTS AND LABOR Tips are made of tungsten cobalt alloy, last for decades of years. EVA handle with easy stapes, very comfortable to hold MOUNTAIN YOYO "DISCOVERY" series passed Tensile Strength test 100kg and GS certificated(GS only require 56kg). Well tested in various environments such as snow mountains or deserts by professional walkers.