Wolf Tooth Lo-Pro Shock Knob. Features: Solution for full-suspension bikes where the shock's rebound knob frequently gets bumped/turned when the water bottle is removed or replaced in the cage Smooth, low-profile knob prevents unwanted adjustments Rebound can be adjusted using a 2.5 mm hex key. Includes mounting set screw Fits most Fox Float Factory series shocks found on Trek, Specialized, Cannondale, Pivot, Turner, Ibis, Yeti, Scott, Intense, Salsa and more Designed and made in the USA from 7075-T6 aluminum Specs: Description: Lo-Pro shock rebound knob Color: red Remarks: Spider mis-printed with "+1mm" but is correctly manufactured with +2mm offset