LEKI WC Lite GS Trigger S Race Poles Air foil, tear-drop cross sectional shaft design increases strength and reduces drag. 16mm Aluminum shaft, carbide tip and cone basket. Bent Shaft GS Poles Red/Black/Silver/Yellow: Yellow Trigger S Grips with New Post Release Mechanism. Sizes: 38-48 inch (95-120 cm) (2 inch / 5 cm increments)