This is the new version of the srixon ad333 golf balls not to be confused with the old version seen at a lower price on other websitessrixon ad333 newly developed soft pana tetrareg blended cover for a higher launch angle and low spin for straighter shots with long carry the highly resilient butadine rubber core increases velocity the soft ionomer cover delivers better control on approaches the soft feel ranges from the driver irons and even to the putter purchase the srixon ad333 go