Specification:Diameter: 42.8mm +/- 0.05mmWeight: 45.6-45.9gCompression:92Dimple: 392Resilience rate 80%Material:surlyn (resin) cover Rubber - coreCover thickness : 0.08" crystal golf ball ·SONALI crystal golf ball features a unique semi-transparent two piece construction to provide both outstanding distance and exceptional soft feel.·The interaction between Surlyn and the high-energy core ensures maximum energy transfer from the clubface to the golf ball, so you can drive the ball over longer distance.·The softest feeling comes from resilient soft Surlyn cover and the low compression enhanced core products substantially better spin and feel creating extra long and straight shots.