Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10842 – No2 – Std – Red – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10845 – No2 – Std – Blue – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10844 – No2 – Std – Black – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10843 – No2 – Std – White – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10846 – No2 – Std – Yellow – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.Ruthless R4X R150 Dart Flights – Extra Strong 150 Micron. Each pack contains 3 flights. Ruthless R4X – R150 – Solid – Dart Flights – 150 Micron – 10847 – No2 – Std – Green – These are super thick and will last much longer than normal flights, as they are heavier be sure to use if you have a strong throw.