TaylorMade prototype golf irons Sean O’Hair PGA Tour equipment

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Sean O'Hair has been playing TaylorMade Tour Preferred Forged MB irons, but he brought a set of prototype irons to Las Vegas.
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Instead of the final cosmetics, the irons feature a black and white pattern.
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The irons have a slot cut into the sole.
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O'Hair has had two top-10 finishes this season and is 84th on the PGA Tour money list.