The BRAND NEW JJ Putting Mirror, is the only mirror on the market that allows you to check your shoulder alignment AND fits in your carry golf bag! 
Check / calibrate set up on the go or before a round, plus practice some basic putting fundamentals. 
Comes with lightweight and soft touch neoprene case.
 
- Check eye position at set up
- Check shoulder alignment at set up
- Check putter alignment at set up (black face line and target line)
- Check head tilt / eye line at set up
- Work on strike using tee gates adjacent to putter
- Work on putter back and through stroke path using tee gates 
- Work on stability keeping the head in the same position throughout the stroke