I sell pool tables and poker tables. I sell a company, and I am sure a retailer in your area sells them too; is California House. Where they make a pool table topper for poker as well as chairs that are slightly raised to make it comfortable to sit at a pool table and not feel like you are 12 years old.
Check for a dealer in your area. You don't have to buy their pool table, but they are the only one I am aware of that sells decent quality chairs at proper adjusted height.