One80 R2 Interchange Points (2.35mm) – 52mm – Grooved – B – Black. Each pack contains 3 points for use with R2 Darts,One80 R2 Interchange Points (2.35mm) – 48mm – Grooved – B – Black. Each pack contains 3 points for use with R2 Darts,One80 R2 Interchange Points (2.35mm) – 44mm – Grooved – B – Black. Each pack contains 3 points for use with R2 Darts,