LEKI Super Micro Trekking Pole Multifunction grip - traditional cane-style design. COR-TEC material is 80% natural, ground cork for comfort and durability. Super Lock System (SLS): the strongest pole locking system available as tested by TUV; secure adjustment hold with the least amount of torque (hand strength required) offers secure, reliable support; up to 6x more secure than other locking systems. Carbide Flextips: concave, cylindrical tips offer secure hold on all terrain and surfaces; Carbide is extremely hard and durable; entire tip ferrule (Flextip) is replaceable. Rubber Tip Attachment: easily attaches / removes from carbide Flextip; meant for use indoors or on pavement only. Remove tip to expose carbide while on trails.