100% brand new and high qualityMaterial: PlasticColor: BlackEasy to lock and unlockEasy to assemble，and convenient to use360° rotating support holderRotating ball-head for easier mounting， viewing and navigatingSuitable for mobile phone PDA MP4 GPS to fix on the bicycleQuake proof designed， the two arms in main unit can extend to a width you needFits any handlebars' diameter size range between:17mm~25mmSuitable For:All smart mobile phones which the width are between 50mm~90mmOperation instruction:1.Insert foot-rest to the back of main unit2.Fix foot-rest on the head of the bicycle， tighten part "A" ， and then up twist part"B"， fix the angle of the main unit.Size: See the picture belowQuantity:1Pc (Not included cellphone!)Note: Due to the difference between different monitors， the picture may not reflect the actual color of the item. Thank you!!