Seat belt extension types: long and short versions for all Smart CAR and fortwo models, with SRS compatibility warnings.

Two black seat belt extension adapters shown, numbered 1 (long) and 2 (short), with safety information text.

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See all Body & Interior figures for the Fortwo / Forfour (453), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.