Swix Sonic RC Performance Aluminum Adjustable Alpine Pole (2-Piece), Silver/Green, Medium/115-140cm Swix sonic poles are the most advanced adjustable poles designed specifically for the all mountain and backcountry skier Super secure barrel adjustment mechanism is easy to adjust and very durable set at any length in the range Sonic poles feel like high performance alpine poles with the advantage of adjustment for various application Sonic basket is ideal for all snow conditions and is interchangeable with larger baskets sold separately Full high strength performance alloy shaft 610 grams