Not ceramics -- those are Prestige Pro #727 chips, a pretty nice soft-plastic injection-molded 12g chip with metal slug and printed surface. They stack like bricks, and handle pretty well considering the price. I have around 3,000 of them, and to this day, they remain the favorite chip of some of my tournament players (go figure, given some of the high-end options they have to chose from). Worst feature is that all of the edge spots are 4T181418 white-black-white, but it works pretty well with the vibrant base colors.
The listing is not a particularly good breakdown for cash or tourney (maybe a T5-base), but it's an easy pickup for somebody wanting to round out an existing set for cheap. They originally sold for about 15c each from SB Supplies, who stopped selling chips eight or nine years ago.
Any idea where they are located? I'd be interested in the chips only (not the case or extras) if somebody wants to pick 'em up and ship. Small profit in it for the re-shipper.