3-ring binder gizmos (Park-Monroe Neighborhood)

(Sorry, that title isn’t very useful but Trashnothing said “3-ring binder magazine holders” was too long). So:
1) The package on the right is definitely a gizmo for putting magazines or other booklets (slim softcover music books comes to mind) into 3-ring binders without any damage to the things being bindered (and allowing you to take them out/swap contents anytime). Despite being open, package still contains all of the original 12 holders. P
2) Package on left is a bit different: these are 3-hole punched strips of plastic with a sticky tape, for permanently attaching things you don’t want to punch holes in but want to put into binders. Of the original 25, there are still 22 of them.