Mizuno MP 67 Irons. 3 - PW w/ DG S300 shafts. Standard loft, lie, and length. Clubs are brand new, never hit. All serial numbers matching. 100% authentic. They also come with New Decade Golf Pride Multi-Compound grips installed directly by Mizuno straight from the factory. Here's a link to Mizuno's page with complete specs on the irons:

MP 67 Irons

These things retail for $850, asking:

$700 OBO