SHIMANO DURA ACE ST-7800 - 10 SPEED STI - 2x10 combo On Ebay
https://www.ebay.com/itm/SHIMANO-DURA-ACE-ST-7800-10-SPEED-STI-2x10-combo-SHIFTERS-BRAKE
https://www.ebay.com/itm/SHIMANO-DURA-ACE-ST-7800-10-SPEED-STI-2x10-combo-SHIFTERS-BRAKE