T.R.U. Ball AVX-31 Fiber Optic Ring Pin with Rheostat Cover, Red

AVX-31 Fiber Optic Ring Pin with Rheostat Cover – .010 Fiber – RedRing Pin: Patented technology for quick interchangeability of ring pins.Choose:.010" or .019" Fiber in Green, Red, Yellow, or BlueRheostat Cover: Cover for Ring Pin to eliminate pin starburst or allow for extra lighting to hit fiber optic based on sun angle or location and varying brightness situations.