Compatibility: This mechanical derailleur hook is compatible with Felt 235 Team 2009，All Models 2000-2005，All Road Bicycles 2007-2010，AR Series 2011-2015，compatible with Chipotle compatible with Garmin 2009，F Series 2009-2012，Speed Series 2009，Z Series 2011-2015，ZW Series 2009-2015. Please confirm the size and model. Material: Made of metal, sturdy and durable, able to provide long-term stable performance. Easy to install: After placing it in place, use a screwdriver to tighten the screws to complete the installation. The packaging includes: 1 mechanical derailleur hook and 3 screws. Compatibility Compatible with FELT Colour Silver Material Metal Part Type Derailleur Hanger Type Derailleur Hanger Brand Unbranded/Generi.