10 Pieces Collared Golf Iron Ferrule 0.355'' Taperd Compatible with Callaway Iron & Wedge X Prototype, Razr X Muscleback, Razr X Tour X Forged CB Irons X Series Jaws CC Razr X Forged CC Forged Wedges

These barely fit a .355 shaft. I would not recommend buying these.

Work great. Definitely needed to sand the inside and apply some heat heat to fit into a .355 taper tip iron shaft but provide a nice snug fit after prepped!