Vintage Kodak 8mm Movie Film Reel Case Tin Metal Canister EMPTY

Digitizing my grandmas old 8mm and found these. What are they? Unused or undeveloped film? Negatives? Something else? Metal tins (Approx. 2”) with film inside, sealed with black tape. (crosspost r/analog)

Film Canister: Over 1,920 Royalty-Free Licensable Stock Photos

Old film canister hi-res stock photography and images - Alamy

Film Reel PNG Images & PSDs for Download

Old film reel tin hi-res stock photography and images - Alamy

EASTMAN KODAK FILM REEL CASE

Movie reel case hi-res stock photography and images - Alamy

Vintage Kodak Film Tin With Empty Reel

8mm Film 7 Reel Empty Canister (Metal) : Electronics