Features1Made of Aluminum, this will be more durable 2Designed with integrated sleeve and inside bearing to make sure the bearing rotate stably 3Double waterproof, dust bearing and bearing shield, which can help to prevent the erosion of sediment water 4Use Naraku paint to prevent the screw loose and slip teeth 5Axial strength HCR60 in line with standardsSpecificationDescription:Bicycle bottom bearing bracket is a great accessory. It is made of Aluminum, this will be more durable. Designed with integrated sleeve and inside bearing to make sure the bearing rotate stably. Positive thread dust-proof design, which will help to prevent the erosion of sediment water. Full range of specifications, can satisfy most of the user base.Features: Made of Aluminum, this will be more durable. Designed with integrated sleeve and inside bearing to make sure the bearing rotate stably.Double waterproof, dust bearing and bearing shield, which can help to prevent the erosion of sediment water.Integrated structure with no gaps to prevent the assembly stuck, stuck coaxial abnormal anomalies, safe for use.Full range of specifications, can satisfy most of the user base.Specifications:Product Name: Bearing AxisMaterial: AluminumColor: Blue & Sliver & BlackFive-way: For 68MM Five-wayDimension: Approx.29 x116mm/1.1 x 4.6inWeight: Approx. 311~334gPackage Included:1 x Bottom Bearing Axis2 x Waterproof ScrewsPlease Note:1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed inphotos may be showing slightly different from the real object. Please in kind prevail.Package List