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NEXTKarl Lenhardt developed an expander dowel locking system that tightened and loosened with a twist. He used the technology in a sectioned tubular aluminum trekking pole that could be expanded for hiking, collapsed for storage, and adjusted in the field. In 1975, Leki introduced the carbide pole tip, which gave trekkers better grip on rock and wore better mile after mile.
Leki Trekking Pole
Photo: Courtesy of Leki
