LEKI Nordic Walking poles are marketed as an easy, full-body workout and a way to strengthen your upper body, create resistance for building bone density easy, and burn 40% more calories compared to regular walking (without poles). According to the manufacturer, these Nordic walking poles feature the Adjustable Super Lock System, which offers reliable function with varied terrain and personal technique; adjustable from 100-130 cm. Made of aircraft-grade aluminum, the pair of poles weighs a total of 16.4 ounces. The Adjustable/Releasable Trigger Strap provides modifiable wrist support and click-in/click-out grip access. Interchangeable Rubber Fitness Tips and Carbide Flextip allow for efficient walking on both hard and soft surfaces.