This is ONE (1) brand new K&N filter clamp only! This is the clamp that holds the K&N filter onto the carb The inside diameter is is 2.00' up to 2.75' or about 50 to 70mm These are narrower than most found at the hardwrae store, so they fit on the narrow neck of the filter WILL NOT FIT STOCK BANSHEE CARBS! We have ones that will in ...