Prototype is a word thrown around too easily in the golf industry, companies are labelling products prototypes that are nothing of the sort. From Wiki : A prototype is an early sample, model, or release of a product built to test a concept or process or to act as a thing to be replicated or learned from. Here is your chance, this is a one of a kind set of S15C Forged hand ground 100% Japan made (of course) Seven Blades 4-AW brand new a one of one concept. It's special, it's rare and its a "real prototype"
The concept is a blade with strong lofts with a gap wedge using the same head mold as the irons 4-AW instead of 3-PW as most blades are sold.
They are hand ground with a slit cavity that was CNC milled below the muscle made with extremely thin top lines and very little offset as you can see in the images below. This listing is for a one of a kind set that will never be produced the same way again. 4-PW shafted with the new Modus 105 Stiff Flex with Elite Y360 Grips, this set is Brand New!