R
R.B. I am very fond of these hooks and heads. The shape of the goby head fits perfectly in the Xzone Xtube. The hooks are relatively stout and don't bend out very easily, and they come super sharp fresh out the package. I'm a stickler about sharp hooks, and I've never had to sharpen an Xzone hook. They are so needle sharp they stick to my finger nail when I do my sharpness test.