The Glow Ring is for use with our 1 5/8 inch 040-1BLK Black Super Scope Housing. Pins green, .020 fiber sizes. Specialty Archery uses high quality Super Flex fluorescent fiber for brilliance. Take into consideration the pin size when ordering, if you use a clarifier. Clarifiers clear up the target, but can fuzz up your pin. When using a clarifier we recommend using a larger pin size. Right Hand.