The Square Triangle is a product that is small and light enough that it can be taken anywhere.
It is small, only weighs a few grams and is extremely efficient on the practice green as well as on a putting mat. To use it, aim the putter towards a hole and then place the Square Triangle in front of the putter blade. By placing yourself behind the Square Triangle, and reading the line, you can easily see where you were really aiming. Then adjust the Square Triangle straight towards the hole, place a ball - and make your putt!
The Square Triangle is a great way to help self-diagnose your alignment tendencies and help correct and improve your stroke and contact with the ball. A must have for instructors and students alike. May be used right or left-handed.