Andway&reg; 2-Pack Anti-Lock Trekking Poles Adjustable Walking and Hiking Poles With Vulcanized Rubber Feet Material: Durable, lightweight aircraft grade 7075 aluminum7075 aluminum. EVA foam handle, sweat-absorbent and comfortable. Suede finish & anti-slip wrist & adjustable strap Durable rubber tips for better traction, metal spike for soft surfaces, snow saucers for winter conditions Weight: approx 280g each pole. 3-Section telescopic pole provides suitable flexibility.Adjustable length from approx. 26" to 54"(65cm to 135cm) Patented fail safe anti-lock mechanism, Please hold the upper segment first, then rotate the lower segment clockwise to loosen the stick, adjust the length of lower segment(Don't surpass the mark of STOP) to appropriate position, and rotate counter-clockwise to lock the alpenstock tightly.