Carbon Composite Shaft: This shaft has a Carbon/Graphite composite material. * Ice Breaker Tip: A sharp, yet durable tip doesn"t slip on firm snow to get solid plants for turning and pushing along the flats. * Rubberized grip: A tacky material aids in grip between the gloves and handle (grip) of the poles, so you don"t loose, uh grip. * Adjustable Nylon Strap: A nylon strap with easy adjustment ensures the poles don"t get away from you after jumping off that big cliff on the backside of the mountain. * 12.7mm Diameter Shaft: 12.7mm is the standard diameter of a set of ski poles.