The i3+ Series features two different models- the i3+ and the i3+ Blade. The i3+ is designed for the player who needs the forgiveness and consistency that PING Irons have offered since they popularized perimeter weighting in 1969. The optimum offset of this model, which progresses from the short irons through the long irons, squares the face at impact for additional accuracy and optimum trajectory.

The i3+ Blade appeals to players who seek the classic look and feel of a club with less offset and a smaller head. The reduced offset offers less bounce for better players to "pick" at the ball from tight fairways. PING engineers also put slightly more offset in the shorter irons of the Blade, which helps players "square up" their shots, while still maintaining a classic look throughout the set.

Both models feature a lead edge which lowers the face surface for easier movement through the turf and more consistent ball contact. The lead edge and bounce translate into improved playability from a wide range of lies and conditions.

The Custom Tuning Port (CTP) is larger to increase the club's perimeter weighting and allow for fine tuning the club's swingweight. The thermoplastic insert enables us to achieve the precise tolerances required for building custom-fit golf clubs without grinding or other common club-altering methods which can affect the subtle features designed and cast into the club. The walls of the port help improve feel and feedback.

The Notched and Flat-top Hosel has been modified slightly to improve the irons' playability and feel. A larger notched hosel provides an easier transition through the grass and allows for precise loft and lie calibration. The flat-top hosel helps reduce shaft stress for improved feel.