説明

• Special Balls for Tokyo Olympics ABS Material, three Stars, Seamed Balls Featured DJ40+ T balls, used in 2021 Tokyo Olympics & WTT More exact method for ball Technical parameters with smaller tolerances Higher consistency More steady technical functionality Stricter Screening & Smaller Tolerances ITTF Standards: - Weight tolerance: 2 to two - Roundness tolerance: <0 - Hardness tolerance: 0 to 0 DJ40+ balls(for Olympics) tolerances compared to ITTF standards: - Weight tolerance: 20% - Roundness tolerance: 25% - Hardness tolerance: 30% DJ40+ balls(for WTT) tolerances in comparison with ITTF standards: - Weight tolerance: 30% - Roundness tolerance: 35% - Hardness tolerance: 46%

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