BLACK DIAMOND Alpine Ergo Cork Trekking Poles 4" high 6" wide Natural cork grip with dual-density top that wicks away sweat. 15-degree corrective angle for an optimal, ergonomic grip position. 100% carbon fiber mid and lower shafts, with aluminum upper. Non-slip grip extension and 360-degree padded webbing strap. Dual FlickLock adjustability. Interchangeable carbide Tech Tips and low-profile Trekking Baskets. Series: Alpine. Weight Per Pair: 515 g (1 lb., 2 oz.). Usable Length: 100-130 cm (39-51 in.). Collapsed Length: 75 cm (30 in.). Imported.