Hi @Jzack605 . Those pots are made by a company in Port Macquarie, New South Wales here in Australia. They are orchid pots and come in a range of sizes up to 30 cm diameter like this one. Good low profile, lots of drainage and long lasting UV resistant heavy plastic. Easy to manage, neat and nice low profile for bonsai.
You don't have a location in your profile so not sure what part of the world you are in.
If you are in Australia you can order from The orchid pot company - https://www.theorchidpotco.com/
Not sure if anyone makes similar pots elsewhere but checking orchid suppliers would be a good place to start.