JESBAN Trekking Poles Walking Hiking Sticks (1-Year Warranty) 7075 aluminum alloy, 0.55 lb each, light weight but sturdy Built-in spring anti-shock system & Twist lock system to ensure safety EVA foam handle, anti-slip & adjustable strap, more comfortable Durable tungsten steel tips to uneven, rocky and challenging terrain, rubber feet for flat terrain, optional snow disk for softer surfaces Adjustable height: Extend from approximately 25.5 to 53,suitable for most human height