Alignment is key to good putting. If you aren't actually aiming where you think you are then the chances of the ball going in the hole are slim, even before you factor in break, speed and stroke.
This is a problem exacerbated by the different putting styles adopted by golfers, placing their eyes behind, directly over or in front of the ball.
Cleveland's TFi 2135 putters address this problem with what it's calling a revolutionary new alignment technology that allows golfers to correctly align their putt regardless of how they set-up.
Traditionally on blade style putters the alignment aid has been located on the bottom flange of the club, that is by design close to the ground, and has been accepted as proper for alignment in this type of putter.
However in this position you are only truly aligned square to the target if your eyes are located directly over the ball. Any divergence from this, Cleveland says, actually leads to your perception of correct alignment being off.
This has been addressed in the TFi putters by raising the height of the sightline by 21.35 mm which equates to the exact height of the centre of the golf ball from the ground.
By placing the alignment line directly behind the centre radius of the ball it allows golfers eyes to send correct alignment signals to the brain regardless of their set-up position.
This unique alignment is backed up with Cleveland's True Feel Innovation, or TFi for short, that we first encountered in the TFi Smart Square Putter.
TFi combines two elements in the face of the club to produce a putter that has a consistent feel and performance across the hitting area.
Firstly, and most strikingly, is the milled copper infused face cap. This distinctive layer gives the player immediate feedback for both sound and feel when they hit the ball.
This is backed up by a co-polymer insert that is stationed directly behind the metal face and which Cleveland says provides feel and consistency across the face.
The TFi 2135 putters come in three models, the 1.0, the 6.5 and the 8.0.
The TFi 2135 1.0 is a classic blade putter with a Plumer's Neck hosel as is the TFi 8.0 which stands out as it is a counterbalanced model with a longer shaft and grip. The TFi 6.5 is a Mid-Mallet that is single bend heel shafted.
In August 2016 the range was enhanced with the addition of three mallet shapes called the Cero, Elevado and Mezzo.
The Elevado is also available as a Counter Balanced model with a 35g heavier head in 35 and 38 inch shaft options.