Features: 100% Brand New and high quality aftermarket golf weights; Weight gram: 20g 25g; The weights compatible with Titleist Scotty Cameron Newport, Studio series, GoLo, California Series, Button Back, Kombi and My Girl; DO NOT Fit Squareback, Fastback, select roundback, or Detour models; Weights include protective rubber rings seal (O rings) to avoid moisture from entering your putter weight cavity; Please double check your original weight screw thread if it is the same as ours before buying. Package List: 4pcs golf weights (2x20g, 2x25g) + wrench + case;