Scent Free Crossbow Care Combo for String and Rail ProtectionThe October Mountain Rail Lube and Wax Combo is an all in one scent free crossbow maintenance set. The string wax penetrates deeply into string fibers and provides UV protection while the rail lube creates a slick surface for smoother string travel improved shot consistency and reduced center serving wear. All in one care combo Scent free formula String wax with UV protection Rail lube improves string glide Helps reduce serving wear