The Burner 2009 irons features a compact and pleasing clubhead with ultra-thin face technology, low CG (Center of Gravity), Inverted Cone Technology and Multi-Functional Sole• Engineered separately, the long irons are long and forgiving, the middle irons are long and accurate, the short irons are accurate and responsive• United low CG (Center of Gravity) with a thing sole provide exceptional playability• Thin Face Technology and Inverted Cone Technology creates increased ball speeds on off-center hits for consistent shot distances from shot to shot• Multi-material cavity badge promotes extraordinary feel by …