Co-designed by Rickie Fowler and Cobra Golf, the Limited Edition RF Proto Irons are a product of 33 different revisions over the span of a year to create the perfect iron. The rich copper finish was hand selected by Rickie as a finishing touch to make his irons truly one of a kind. Limited Edition commemorative box included. KBS C-Taper 120 Stiff Flex.The item "New Cobra King RF Proto REV33 Limited Edition Iron Set 4-PW" is in sale since Monday, June 21, 2021. This item is in the category "Sporting Goods\Golf\Golf Clubs & Equipment\Golf Clubs". The seller is "kotab27" and is located in Rochester, Minnesota. This item can be shipped to United States.