Honestly... I've got a big oily nose and those plastic ones just didn't keep the water out at all. After the plastic one I had broke, I tried this metal one and it works great. Really keeps all water out.

Works Great. I had plastic ones before and after a while in the chlorine the plastic gets brittle and breaks. These are very comftable. It would be nice if they came in a little box so you dont lose them in your bag. I just keep them clipped on to my training snorkel