A tennis ball consisting of a skin comprising mainly a synthetic plastic as base material and containing structure strengthening materials useful for playing tennis

摘要

A tennis ball consisting of a skin (1) comprising mainly a synthetic plastic as base material, and containing profiling, shape altering, structure forming, structure altering and especially structure strengthening materials, elements or measures, preferably for introduction of another material as base material, or for profiling design of the inner (2) or outer (3) surfaces of the skin (1).