Measures approx 125 x 86cm, the box has a few scuffs, most will probably wash off, it's been stored in the attic.
Unfortunately there's a smallish hole in one corner underneath which should be repairable - see the photo.
There's one key and duplicates can be cut for around £3
Mont Blanc - Auto-XS 320 Roof box (Ashton-U-Lyne OL7)
This offer has been gifted to someone and is no longer available.