The original Prestige Pro #727 chips are face-printed injection-molded 12g soft plastics with square edges and common black/white spots on all chips, and are slightly smaller than 39mm (exact same diameter as most TRK chips, in fact). Raised outer ring, they stack very well and are the least slippery of any metal slugged plastic chip I've ever seen.
Many years ago, I worked with the original producer (SB Supplies) to add high denomination chips (10000, 25000) to their original set offerings (1, 5, 10, 25, 50, 100, 500, 1000, 5000). Sold for around 14c each back in the day. Wouldn't pay 20c for 'em now unless the cases were really nice.
I still have around 3,000 chips.