Shimano Deore LX ST-M580 3 x 9 Speed Dual Control Shifters
Shimano Deore LX SL M580 Shifter user reviews : 4 out of 5 - 2 reviews - mtbr.com
Shimano DEORE LX Dual Control Shift-Brake Levers for V-Brake ST-M580. Let's you shift gears up or down regardless of your hand position on the handlebar.