its a 2" spinner but there pretty good quality and there aluminum,and less pointy than the Tru-turn http://www.racingdevil.com/product.php?category_id=105 I got a couple of the 3" ones for my P-40 and they look good and for 10.50 hard to beat that price for a aluminum spinner.
some pics of my P40 with the 3" spinner with a 3 blade 14-7 mas prop.