450 fortwo, City Coupe, 451 fortwo and 452 Roadster models
Undertray Clip with Screw (8 on the car).
Don't get mixed up between these central types - which go in various places underneath, and the other four which go along the side chassis rails (2 each side).
Make sure you know which item you need - read description of this, and the previous item.
Price is for 1 clip, screw included.