Hi Dick, these were made for the Home Poker Market some years back but were discontinued. There were a number of different sets made and from what i call had basic denoms ($1, $5, $25, $100), don't know if they had any others. I recall these being larger in diameter than normal size but smaller than baccarat chips. Maybe 41mm? I thought they were sold online by Trademark Poker Supplies, but my memory is bad so i could be wrong. Best Greg