Feature: Set(x2) of 20g putter weights. Note: This weights must use 6-prong wrench not 5-prong wrench. fit Newport series. fit special select newport. (Note: Included weights will NOT fit 2008 Studio Select Fastback 1 and Squareback 1; 2014 Select Squareback, Fastback, Roundback; 2016 Newport Mallet 1; California Fastback and 2018 Select Fastback putters.).