The 11-model Sigma 2 family is designed for the golfer who prefers a putter on the softer side of the spectrum with the lively response of a firm face. Plus, an innovative adjustable-length shaft allows you to dial-in your precise fit. Our studies show 8 of 10 golfers are playing the wrong-length putter, and that consistency improves when you can customize the length for your stroke and posture.