Hi, they are probably "super-8" film reels.
Super-8 film has smaller film sprocket holes than regular 8mm film. If you don't have both to compare it may be difficult to know what smaller is, but basically most of the film frame is film, whereas with regular 8mm the sprocket hole is pretty big in relation to the film area.
Why not take a digital still of the film frame so we can take a look at it.
Bookmarks