Product Description End cap for A-Head stems with integrated holder for attaching the Topeak Ratchet Rocket Transportbox and Handy Phone Packs. Made of aluminium, nylon, stainless steel. Compatibility:DryBag f0r iPhonePhone DryBagRatchet Rocket™Handy Phone Pack micro/small iPhone is a registered trademark of Apple Inc., registered in the U.S. and other countries. Manufacturer Number:TMS-SP21 Contents:1 x incl. bolt Manufacturer: RTI Sports GmbH Am Autobahnkreuz 7 55072 Koblenz Germany service@rtisports.de