Furniture Mover Ray (Duck Tales)

[Cammagno]

I don't understand exactly how it works.
It's an item enhancer that must be attached to a big item.

Than it says "It is now small and undetectable.
You may carry another Vehicle or Big Item."

1) Is the first line only flavor text, or the item it's attached to really became small (and so for example can be stolen, differently from using a Chat! card))?

2) I'm ok with the "You may carry another Big Item", but what about the "You may carry another Vehicle"? It's valid only if it's attached to a Vehicle (as a Vehicle Enhancer), I suppose, do you agree? And in this case "carry" means equip/use (you can't only carry Vehicles), right?