22 August 2008 15:27 GMT / By Katie Scott
It may not look like much but the D2 Swing Trainer is promising to make you a better golfer, according to lots of golf pros (who we promise haven't been paid lots of money by the manufacturer for their endorsement).It has clever built-in weights that make it hard for the golfer to backswing incorrectly, which means their technique will improve and their shots will get more accurate.
It costs $100 but who can put a price of beating your mates on the course?
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