This is quite clever as the wider blade heads like the 1.0 have a toe hang whereas the more compact mallets are face balanced so they will perform in different ways.
The 2135 part of the name comes from the sight line on all the models that is raised up 21.35mm from the ground so that it is level with the centre of the golf ball.
This means that whatever your eye position, the centre of the putter should be correctly aligned with the ball so that you make more centre strikes and don’t need all that face groove technology after all.
It’s a well thought out feature and whilst it may look a bit odd from the side, at address the black areas all blend in and you just see the raised white alignment line.
All the putters come with a choice of a standard mid-sized pistol grip or a 63g oversized, non-tapered, flat front grip, both of which are lovely to hold.
The Satin range comes in 33, 34 and 35 inch shafts with a 70° lie and in a couple of the mallet heads you can also get a longer 38 inch shaft so you can place your hands wherever you want on a longer oversized counterbalanced grip.