Check the listing for details. Dawson sights: fiber optic rods .060 or .040" 5 colors options 1st CLASS MAIL!. Condition: New. Listed at 5.75 USD. Fiber Optic Strands for Firearm SightsOur high visibility fluorescent fiber comes in your choice of 6 colors: Red, Orange, Bright Blue, Dark Blue, Amber and Green Please note that not all fiber will fit all sights perfectly. Most of the time, this high visibility fluorescent fiber will work perfectly however, on an occasion, a slight filing of the sights or the fiber is required. If you are unsure of the diameter fiber that you need,please message us and we will ship exactly what you need! See our other eBay listings for other diameter fiber rods.This item ships via 1st class USPS mailWe are the exclusive ebay re-seller of BullsEye Premium Fluorescent Fiber Optics. Don't go to the range or hunting without fresh fiber optics in your sights. Your targets will feel the difference!