Lightweight and designed with solid aircraft aluminum, the Leki Spark S Ski Poles are strong and reliable in a variety of conditions. It's aluminum shaft keeps the pole at a light weight and won't suffer any damage if it goes flying from their fingertips. That shouldn't be an issue though because these poles are equipped with a Trigger Shark strap. Simple handling and fast adjustments these straps will also provide you with the perfect, precise fit for optimal control and power transfer. The baskets at the bottom of the Leki Spark S Ski Poles motion 360 degree providing versatility in all types of winter conditions.