"The flat-top PA-1"
In this new PA-1 run, the disc cover is flatter than normal, which makes the disc slightly more stable in flight. The flat cover also makes it easier to throw with the palm of your hand.
"All the slot discs in the store are described separately so that you can choose exactly the color or stamp disc that pleases you the most. This is especially good for Spectrum discs, where each disc is always different."