Is this a true rookie card?

Yes. It is Nabers' 2024 rookie card from Topps Chrome Cosmic, released in his first NFL season, and it carries the rookie designation in the set checklist.

How does it compare with his Topps Chrome base rookie?

Chrome Cosmic is a smaller, chromium-based product, so its base rookies are shorter-printed than flagship Topps Chrome rookies. That makes this card scarcer, but it has fewer sales to compare against.

What parallels exist in Chrome Cosmic?

The set uses cosmic-themed refractor parallels in numbered colors, plus inserts and autographs. This listing is the base card #167, not a numbered parallel.

Grading helps only if the card is centered and free of surface and edge flaws, since chromium stock shows scratches easily. For a base rookie, grading costs can outweigh the gain unless it grades high.

Is it a good investment?

It is a licensed rookie of a highly drafted wide receiver, so demand follows his production. Treat it as a player bet rather than a stable asset, and check recent sales of the same card.