Features: 100% Brand New and high quality aftermarket golf weights; Weight gram for choose: 5g 10g 15g 20g 25g 30g 35g 40g; The weights compatible with Titleist Scotty Cameron Newport, Studio series, GoLo, California Series, Button Back, Kombi and My Girl; Weights include protective rubber rings seal (O rings) to avoid moisture from entering your putter weight cavity; DO NOT Fit Squareback, Fastback, select roundback, or Detour models; Package List: 2pcs 30g weight; Please double check your original weight screw thread if it is same as ours before buying the weights. The weight should be used with 5-prong wrench; If any question about our product, please feel free to contact us, we will reply you within 24 hours.