The difference between the Multiclip and Multifix cover profiles lies in the installation method: the Multiclip profiles are equipped with a base and a clip, on which the cover (available in various finishes) is clipped on; on the Multifix profiles, on the other hand, the cover is fastened directly on the floor with screws. Alternatively, there are Multifix CLX fasteners which can be ordered separately. (You may also be interested in the Multicover profile)