The Ion is MVP's beaded stable putter.
The Ion’s beaded rim design makes it a straight to overstable flier. Power putters can use the Ion with confidence. It is capable of holding long powerful lines with a late subtle fade. This makes it a very versatile putter that can be used in all conditions.
Flight Ratings: Speed 2.5, Glide 3, Turn 0, Fade 1
About the plastic: Proton has a great feel in the hand, typically on the stiffer side and they are often semi-transparent in looks. They are one of the more stable plastics out of MVP besides Eclipse. These are extremely durable, and look really fantastic in vibrant colors.