Official replacement foosball table balls with 1.37"(35mm) outside diameter Durable pure 100% urethane consistency, 20 kinds of materials mixed together. Great grip and roll straight, lasts longer than any plastic balls. Near perfect roundness, within .001" from center all the way around the ball Best control in playing, more fur with long time playing, professional choice. For any tables: Our balls are sized to play great on all type of tables and for tournament standards. Foosball Balls