SILICON NITRIDE II · is an improved version of the original ring, making it a perfect
ceramic guide for heavy duty rods. It was designed for use as ball bearings in jet engines, because
of its tremendous hardness factor and high wear resistance. If it can handle the heat and friction
of a jet engine, just imagine how well it will perform under the toughest fishing conditions. And if
there ever was a ring built for wire line, this is it. Silicon Nitride has the strength and durability
needed to tackle any kind of saltwater fishing.