PaceMaker Stix Journey Trekking Poles Pair for Walking, Hiking, Travel, & Climbing. Ultralight Aluminum Adjustable Height & Telescoping Sticks with Synthetic Cork Grips, and Replaceable Tungsten Tips Light weight, aircraft grade 7075 aluminum Unmatched one year warranty against defect!! Telescoping with patented fail-safe twist-lock locking mechanism Tungsten tips & vulcanized "extended life" rubber feet & other extras