| 摘要 |
A roll-resistant tennis ball can and lid are provided with features that prevent cans from rolling on flat surfaces. The cans and lids may be manufactured in an economically efficient way. The invention can be accomplished in two ways. The first is by providing the can's lid with a square or other configuration such that a non-circular edge contacts the ground. The second way is to have the body portion of the can have a square cross-section or some other cross-section that is configured to prevent rolling.
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