Anti Shock Walking Sticks Telescopic Trekking Hiking Poles Ultralight Walking Canes With Rubber Tips Protectors Body material:aluminum alloy Handle:Made of PVC,Non slip design, two style(T-handle and Straight handle) Color:blue,black,red,sliver. Size:52-110cm Package:1pcs Note:adjust the length in a rotating manner,don’t pull it, Their joints are expansion screws, and when you rotate, the screw will become big and will stuck the joint tightly.please see the video