Discraft "Factory Second Glow Elite Z Stalker Stability Rating: 1.1 Plastic: Glow in the Dark Elite Z Actual disc appearance/hot stamp may differ from pictured item. This disc is a "Factory Second," which may include a blemished hot stamp, slight plastic imperfections, minor shelf wear, or other cosmetic defects that won't affect the disc's flight. It's a great way to save some money.