The two-piece modern ball is formed by surrounding a spherical molded core made of rubber or synthetic rubber with a hard covering. The ball is painted, stamped with a logo, given a glossy coat and dried.
Three-piece balls have a core center, a rubber covering of the core and a final coating.
Four-piece balls have another covering over the first covering around the core that's not as hard as the final coating but not as soft as the rubber covering the core.
The more layers, the more expensive the ball, due to complexity in manufacturing.
Updated: 31-Mar-2021 | Email feedback to this question