Features: Features easy and secure locking systems for rapid handlebar adjustments and folding operations. offer 15.5cm extension ranges from 35cm to 50.5cm to accommodate various riders preferences and bike setups. Utilizes robust locking structure for enhanced stability and safety during rides. Designed to fit 25.4mm handlebars and outer diameter 28.6mm front fork for folding bike applications. Made from aluminum alloy for enduring performances while maintaining portability. Specifications: Component: Aluminum Alloy Type: 22.2mm/25.4mm Height Adjustment Distance: 15.5cm/6.1inch Length: about 35-50.5cm/13.78-19.88inch Applicable to: Suitable for handlebars with a diameter of 25.4mm/1inch Suitable for front fork tube with an outer diameter of 28.6mm/1.13inch Package Includes: 1pc Adjustable Folding Bike Stem note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.