PING G5i Series Insert Putters feature:

The dual durometer insert of the G5i Series provides the feel and distance control golfers long for on putts of all lengths. The combination of the soft perimeter and firm impact area means golfers can lag with confidence and be firm when it counts the most. Sole cavities and thru holes allow expanded perimeter weighting, resulting in high moment-of-inertias in each putter in the series. The putter's reputation for quality and consistency is furthered by the precision machined insert cavity.

• A softer perimeter is combined with a firmer impact surface to create optimal distance control by providing the ideal feel and feedback. 
• A ball-width, crescent-shaped top rail and the blue Optigraphic Alignment System makes lining up putts simple.
• Models: Ally,  Anser,  B60,  Mini C,  Pal,  Piper,  Tess,  UG-LE,  Zing
• Lie angles: Standard,  1° Flat,  2° Flat,  1° Upright,  2° Upright
• Available lengths: 33", 34", 35", 36"
• Available in right- and left-hand models