The one found under the seat- or, if you're reading this, the one which was originally under the seat on your bike, but probably tucked on a shelf in the previous owner's garage.
All the servicing info, specs etc.
Good unread condition, still in its original plastic sleeve.
£8 inc P+P to mainland UK, overseas with extra postage if you want, but this is a UK model one.

It's not falling off, it's an upgrade opportunity.