Sturdy and Durable: The 6061 aluminum alloy bike stem riser is 20% lighter than conventional aluminum alloy stem extender. Strong handlebar extension that is not easy to loose and is safer to use. Strong in anti-corrosion and anti-rust, high toughness and non-deformable. Adjustable: The stem riser can freely adjust the joint according to your needs, effectively reducing waist pressure and making riding more relaxed. Good Sealing. : The handlebar adapter is equipped with 4 joints, 3 x 10mm and 1 x 5mm, which can increase the height up to 70mm. Comfortable and Easy to Handle: Smooth handling, lightweight, much easier to force when climbing, comfortable use. Easy Installation: Just connect the original front fork of the bicycle. The handlebar mount can be used on most bicycles.