G4Free Anti Shock & Folding Collapsible Trekking Pole Climbing Stick with EVA Foam Handle, Ultralight Adjustable Alpenstocks, for Travel Hiking Backpacking Walking Made of strong 7075 light Aluminum, durable and sturdy,not easy to deform, great for trekking, hiking, backpacking, climbing, and mountaineering. Foldable & ultralight, easier to pack and less fatigue.New lock system, quick lock, impact resistance.Each pole only weights 0.44lbs . Folded Size: 14 inches. Adjustable from 44 inch to 53 inch(unfolded size), safer and fixed for all people. Tungsten steel rod tip which is abrasion resistant, annti-shock spring mechanism reduces strains on hands and wrist, which is perfect for people with weak joints, prior sports injuries, and it is best for downhill hiking. Soft EVA foam hand grips with wrist strap, absorbs moisture from sweaty hands and very comfortable to hold. Instruction: How to pull the internal cord tight : Step 1: Pull the pole on opposite direction until the lock pop out, this pole needs to be pulled tight before the lock will pop out and hold it together . Step 2:When the lock pop out ,adjust the control lock catch ,and fasten it .