MVP Disc Sports Plasma Inertia Disc Golf Distance Driver MVP INERTIA - The Inertia is an understable distance driver. Its Neutral flight for low power throwers will allow for reliably straight distance lines with accuracy. STABLE-UNDERSTABLE DISTANCE DRIVER - The Inertia's understable profile will allow high power throwers to achieve consistent hyzerflips that will carry far and accurately. 18.5 MM CLASS - The Inertia is the grand debut of our 20mm-wing distance driver class. PLASMA PLASTIC: MVP's highly durable premium polymer, Plasma Plastic has a pearlescent metallic sheen that is semi gummy for unmatched grip and beautiful color shifting tones. PDGA APPROVED - For all professional disc golf play