300 is Prodigy’s baseline putter plastic, made for putters, approach discs, and mids. It comes in Firm and Soft runs, 350 is a related firmer blend, and Fractal is 300 with a swirl. Eight moulds are listed.
That’s the Prodigy plastic for a putter feel: grippy, translucent, made to stop on landing.
It wears the way putter plastics do and isn’t a driver plastic. 400 and 500 are the premium Prodigy blends.