Ravin Replacement String And Cables Set For R500. The Ravin R500 High Performance Crossbow Accy Replacement w/ Dyneema: one pair of strings (color: black tan green blue red violet blue red green gold or gray) one pair of cables (color: black red grey or blue) one pair of d-loops (black red blue green or orange see inserts for color details. The color of the cables and string (black purple blue yellow orange or green one pair) may vary. Specifications for Ravin Replacement String And Cables Set f/ R500: Manufacturer: Ravin Color: Black Weight: 0.2 lb Archery Application: Outdoor Features of Ravin Replacement String And Cables Set For R500 For use in R500 R500E R500 Sniper and R500E Sniper only. Package Contents: Ravin Replacement String And Cables Set f/ R500 Ravin R192: Replacement String And Cables Set For R500