The Joy Factory StormCruiser Heavy-Duty Handlebar Mount and Protective Case For iPhone 4/4S MVB101 Type: Case Compatible Phone Manufacturer: Apple Specifications: Dimension: 6.1 x 3 x 3 Weight: 0.41 lbs. Features: The Storm Cruiser from The Joy Factory is the best iPhone mount available for bicycles, motorcycles, and ATVs. Designed to attach to standard handlebars The StormCruiser also affixes to golf carts, sports umbrellas,anything with a diameter of 1 1/8 inches or less The Best Quality Mount Available All-Weather Armor Complete Protection, No Drawbacks Easy Setup