This is a 64 titanium piton shaft. 64 titanium is stronger than pure titanium. Shaft diameter is 13mm. Knurled section is approximately 50mm. Price is for a 30cm length. Set of 2. The image is an example and is not a 30cm shaft. Other lengths and specifications are available, so please ask questions if you have any requests. We will manufacture the item after the auction ends, so it will take some time after you win the bid. You can specify the diameter of the knurled section.