Callaway has introduced new irons, with some outlets reviewing the Rogue ST Max OS model and others discussing the broader Rogue ST lineup. The irons are described as part of the Callaway family, with some reviews also mentioning the Quantum Max and Max OS models. Reviews of the irons are being published by various golf outlets, though it is unclear if all models are being reviewed or if the Rogue ST and Quantum Max lines are distinct or related.