I am writing to request your assistance in creating specifications for a table design that meets specific criteria. The design should include a 3D model featuring two circular tables: one with a diameter of 210 and the other with a diameter of 90. Additionally, I would like to incorporate a design for chairs that will complement these tables. Please ensure that the specifications detail all necessary dimensions, including the heights and sizes of the chairs in relation to the tables. The final deliverable should include a comprehensive 3D model along with a complete list of sizes for both the tables and chairs.