You can use them on the Sling Shot Clutch Control - 4 Speed pedals, but you'll have to adhesive them on because the pedal on that kit is smaller.
Note: The white pedal rubbers are NOS. They are new in the package, but were made some time ago. They have an aged look and even some occasional dirty spots giving you the proper patina.
I ordered the white foot pedal cover, and it's perfect for the slingshot clutch. It's also a nice off-white color, not the bright white that doesn't match anything that you normally see.