SEAT Accessories provide several fastening systems for use in transit. Over the roof bars or inside the car's boot, this fastening strap kit keeps everything properly secured. Reference: 000017770 For light load transportation. Includes 2 wide and 2 narrow straps with tensioning mechanism to fix objects onto roof bars or inside the boot.   Reference: 000017771 For securing heavy loads. Includes a hook and a tensioning mechanism to carry loads securely and effortlessly. Personalised SEAT Sport.