| Model | Flex | Weight (g) | Spin | Launch |
| iSeries Steel 105 | Variable | 105 | low+ | Mid |
| iSeries Steel 115 | Variable | 115 | low+ | Mid |
| iSeries Steel 125 | Variable | 125 | low+ | Mid |
ACCRA I-Series Steel Iron Shaft features Unique Dual Step Design combining the “feel” of a stepped shaft in the handle with the stability and feedback of a stepless shaft from the mid-section down. ACCRA i-Series steel iron shaft also features a revolutionary new finishing process from TRUE Sports: ECO-Shield. ECO-Shield is a proprietary new series of finishes that eliminates the need for traditional Nickel-Chrome plating, eliminating the need for numerous chemicals and preserving up to 10 gallons of water per shaft.