Exciting new golf training aid that helps everyone improve their game. By placing LevelMark strategically throughout your putting line you will be able to detect even the subtlest of breaks and changes in elevation. The best way to ???train??? your eye to read putts is to read them manually first and then confirm your findings with LevelMark. You will very quickly learn that the greater the deflection of the ???bubble??? from center the greater the break in the putts??? guaranteed to improve your game. *Great new compact training aid *Custom Die Struck *4 Colors both sides included; Standard Enamel finish; Packaging: Velour Bag *A great conversation piece; Dimensions: 41mm x 41mm; Weight: 30 grams