Abstract: A ball has a core and a cover surrounding the core. The cover is made of a rubber material and surrounding the core. The cover has two half pieces sewn together with each other, and each half piece has a fabric lining securely attached to an inner surface of the half piece with a ripening process. Accordingly, the cover made of a rubber material has an excellent wear-resisting efficiency and will not contain water, such that the useful life of the ball is prolonged.

Abstract: A ball has a cover having at least two skins connected along borders of the skins. At least one flexible band is stitched between the borders of the skins. A bladder is received in the cover. The flexible bands can offset a shape difference of the cover to make the inflated ball as a “true sphere”.

Abstract: A ball with good durability and distinctive decoration is disclosed. The ball includes a cover having a plurality of panels bordering one another and a plurality of welts formed between the panels. Every adjacent two of the panels have respective margins extending towards the interior of the cover and sandwiching a corresponding one of the welts. The margins and one of the welts are joined together with one or more lines of stitches. The welts may be colored differently from the panels or differently from each other.