ventura thumb adjuster right 10v blackThe Ventura thumb shifter is a black aluminum thumb shifter. It's suitable for the left hand position and has 10 gears. The clamp diameter is 22. 2 mm and it weighs approximately 145 grams. The thumb shifter comes with a 2 meter internal cable. Color: black Material: aluminum Position: left Number of gears: 10 Clamp diameter: 22. 2 mm Weight: approx. 145 grams Cable length: 2 meters