Each Ob-La-Di, Ob-La-Da looks like a small, flat, round disc resembling a cookie, with six stubs protruding from its edges. It visually has a four-toed paw print on its back. When duplicated, the bodies seem to link together via their stubs. Akefu calls Ob-La-Di, Ob-La-Da an insect but notes that its species aren't technically insects, as they lack a three-segmented body or jointed legs.
