... 1. Diameter:42.7mm2. Weight:45g3. flexibility:=>75%4. Core material: synthetic rubber5. Cover material: surlyn6. ... : range golf ball ( 2 pieces, 3 pieces & 4 pieces), tournament golf ball ( 2 pieces, 3 pieces & 4 pieces), floating ball, gift ball, ... flashing ball, crystal ball, transparent pattern ball, custom ball, novelty ball, color ball ,ect 4 ...