From Discmania: "The New P2 has the same straight-to-stable flight you have known for years, but with two new features. We’ve developed a unique texture to give you the best grip available on any baseline plastic on any conditions. We know that every disc golfer prefers a different amount of flex in their putters. Some like their putter super soft while others want them rock hard."
Flex 2 - Medium stiffness that works for everyone.