BLUSOW Trekking Poles Ultralight Anti Shock Walking Hiking Sticks with Adjustable Height & Free Four Pairs of Rubber Feet & Snow Disks(2 Pack) 7075 aluminum alloy,Cork plus EVA foam. 2.Cork plus EVA foam, more comfortable and sweat-absorbent. Adjustable and wider suede wrist strap, softer and safer. 3. Built-in anti-shock & twist lock mechanism: an anti-shock spring at second section of the poles, plus fast lock to ensure your safety. 4. Durable tungsten steel tips of diamond pattern, more skid resistant and better penetrating on uneven, rocky and challenging terrain; also comes with 2 pairs of rubber tips for flat or soft and slippery terrain, plus snow disks for mud or snow. 5.An adjustable height of 25.6 to 53 by three sections, safer and suitable for most people.