The Prodigy Disc M4 is an extremely reliable understable midrange disc. It is designed for all players and flies extremely far for a midrange. The M4 will turn up when thrown hard and will then have an extra long glide and a soft straight finish. AIR Spectrum is a line of premium, lightweight discs. They are engineered for the same shot performance of their heavier counterparts with added glide. Stamp color may vary. Shade of disc color may vary.