Has the key and 2 seemingly spare tires (see envelope picture) as it feels like that's what's in there but it's sealed and don't want to rip it open. Wound it up and as you can see all the parts move as they should. Tested it on ground and it didn't move but when I picked it up it did. Front tire looks a little worn so maybe that's why it wasn't moving on ground, either way it probably can be fixed rather easily. Seems to be in great condition for the age and comes with original box and envelope and what's inside ... if it's not rubber wheels and it's gold or another treasure I want you to share it :-). Box obviously has a bit of damage from years on a shelf but in very functional condition with no major issues. Will ship with padding inside another box so there's no further damage to the product or box. One of the best and most complete sets I've seen online here.