Key Specification/Special Feature
·Material: 316L Stainless Steel
·Shaft thickness(mm): 0.8, 1.0, 1.2, 1.6, 2.0,
                                   2.5, 3.0, 4.0, 5.0
·Inner Diameter(mm): 8, 9.5, 11, 13, 16, 19,
                                   22, 26, 32, 35, 38, 
·Ball(Spike) Sizes(mm): 3, 4, 5, 6, 8
·Color of Anodization: Black, Gold, L/Blue,
                                   D/Blue, Green, Purple,
                                   Pink, Rainbow