Bicycle Handlebar Extender, Aluminum Alloy Bicycle Handlebar Extension Bracket Bike Lamp Phone Holder Rack (Black 10cm Carbon Tube) Specification: Condition: 100% Brand New Material: Aluminium alloy Color: Black, Blue (optional) Tube Type: Aluminium alloy tube, Carbon tube (optional) Tube Length: 10cm, 20cm (optional) Extension Frame Size: Approx. 9.5 * 3.8cm / 3.7 * 1.5in Aluminium Alloy Tube Size: Approx. 10 * 2cm / 3.9 * 0.8in Carbon Tube Size: Approx. 20 * 2cm / 7.9 * 0.8in Weight: Approx. 44-97g / 1.6-3.4oz Item Type: Bicycle Extension Frame Features: PREMIUM QUALITY: Made of high quality aluminum alloy, which is colorfast, sturdy and durable for a longtime service. STABLE: Break dimensional constraint, can clip lamp holder, mobile phone holder, code watch, horn, etc. With gasket design, which is anti-slip and anti-shock, prevent falling out from bumping. EASY TO MOUNT: Standard socket screw, easy to install and disassemble. MULTI-SPECIFICATIONS: With single and double poles, two different color print, Aluminium alloy tube and Carbon tube are available, meet different needs. Package Included: 1 * Extension frame 1 * Aluminium alloy tube or 1 * Carbon tube 1 * Hexagon screw