Welcome to our store. If you love Sports and Outdoor Activities ,we will provide what you want, and give you much surprise.Description: - Aluminum Alloy Material: Bearing headset adopting aluminum alloy, durable to use . - Flexible Rotation: Built in Two Peilin bearing, flexible rotation, very lubricated . - Electroplating Surface: Internal sealed bearing with its surface electroplating polishig. The sealing is good for keeping dust and water away to prolong service life. - Applicable: The inner diameter of the front fork is 22.2mm, the outer diameter of the front fork is 25.4mm, and the inner diameter of the head tube is 30mm, Applicable frame 25.4mm front fork . - Feature: Solid and durable, turning smoothly, low noise .Specification: - Material: Aluminum Alloy - Color: Silver - Size: 4x4x7cm/1.57x1.57x2.76 inch - Size: 1 inch (with teeth)Specification: Φ22.2x30x27mm - Height: 26+13=39mmPackage Includes:1 PieceBike HeadsetNote:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 1-3mm differences due to manual measurement.