Hello, up for sale is a gray Shimano 105 5600 10 Speed Mechanical Group.  Includes rear derailleur, brake/shift levers, brakes, chain, cassette and shift cables/housing.  I recently purchased a Land Shark bicycle for the frameset and already had a group for it.  These 10 speed 5600 105 components had been recently installed on the bike and have very few miles.  No damage, scuffs or issues.  The pristine condition of the chain, cassette, brake hoods and brake pads show the minimal amount of miles on the group.  Last of the tried and true mechanical components from Shimano.  Please see specs below.  Buyer to pay $16.80 USPS Ground Advantage shipping with tracking.  Buyers outside the Continental US to use Ebay's International Shipping.  LOW starting bid with no reserve.  Thanks for looking!