Apollo23-Weather / Shock Proof Bicycle Bike Cradle Holder Wrench Mount for iPhone 4S iPhone 4 This bicycle phone holder ensures that your Apple iPhone 4S iPhone4 AT&T / Verizon stays close at hand, whether biking to the market, across town, or in the mountains Now your cell phone can hit the road when you do to provide you with music and GPS directions Holds cell phone horizontally or vertically for easy viewing Ball head swivel design allows you to adjust the display to the most convenient position Quake proof designed, the two arms in main unit can be extended to any length you need