I’ve featured the EEZ Read here a few times. This product is exactly the same concept as that one, with a different package.
The Sure Putt is a green reader with a bubble level inside. Place the unit in your line on the green and you can see how much break there is. To get better reads, place the unit in multiple locations of the putt line.
The construction of this unit is nice. The casing is aluminum and the text is milled. I’d say that whoever is doing their milling should get a raise because it is so good.
The unit could also be used as a large ball marker I suppose.
Note, this reader is not legal to use in tournament play or stipulated rounds.