1. Shiny & durable Solid Slim Silicon carbide (SIC ) rings for longer and smoother castings. (Braid-line friendly) * 2. Gun-metal color / Stainless steel Low-frame construction to match any color of blanks. * 3. Set can be used from heavy surf conventional to light rods configurations. * 4. Set Sizes # : #16 ring, tube size #6.5 or 2.6mm, #7 or 2.8mm, #8 or 3.2mm, #9 or 3.6mm, #10 or 4.0mm