Truvativ X 2x10 Mrp Chain Guide Iscg 05 39-42t White

X-Guide has been designed specifically for 2x10 drivetrains. There's no need for a top guide if you're running a front derailleur so instead there's just a (sealed) bottom pulley and a honeycomb plastic skid plate at the front.

Light weight aluminum mounting plate
Honeycomb plastic skid plate at the front