Features 1、The hole diameter of the connecting front fork is 28.6mm, and the outer diameter of the tube on the front fork is required to be 28.6mm. Generally, bicycles are of this size, which shall be subject to actual measurement. 2、The hole of handlebar lock is 31.8mm, and the middle outer diameter of handlebar is required to be 31.8mm. 3、Length is 110 mm, by adjusting the angle, you can change the height, there is always a suitable height for you. 4、Made of high quality aluminium alloy material, sturdy, durable and long service life. 5、Professional manufacturing, stable characteristics and high reliability. Condition: 100% Brand New Item Type: Adjustable Bicycle Stem Extender Material: Aluminium Alloy Color: As Pictures Shown Quantity: 1PCS Weight: Approx. 414g Length: Approx. 110mm/4.33inch Rise: Approx. 15mm/0.59inch Package List 1 x Adjustable Bicycle Stem Extender