Introduced in 2006, the Yes! Callie-f Putter is a traditionally styled cavity back putter formed from one-piece of forged manganese-bronze.
The grooves are precision milled into the face revealing its golden grooves. All but the grooves are then oxidized to provide a non-glare finish to the body.
The Callie-f is the ultimate marriage of traditional forged material combined with the patented C-GROOVE technology, resulting in a superior roll and a soft, responsive feel
RRP: £215
Contact: 0845 601 5778
Website: www.yesgolf.co.uk
Review from the magazine
TG rating 
Yes! has made inroads on Tour with its concentric half-circle grooves on the face of its putters, and the latest entry is a forged model made of manganese bronze.
The milled putter face grooves are designed to grip the ball to reduce skidding and encourage top-spin. The result is a solid feeling putter that keeps the golf ball rolling rather than skidding to the hole.