Woods started to use this now famous putter in 1999.
It is a blade-style Anser putter.
The putter is 34 inches long and made from German stainless steel (GSS).
The face was milled and then made smooth.
It has a single dot on the top line that helps him put the sweet spot directly behind the centre of the ball.
This putter is arguably the most valuable club in golf history.