Carbon Express Pin Point .234 Size 2 500-650 12 pk.. Fits Carbon Express .166" ID shafts. Size 2: 600-900 spine 110-90 gr. Size 3: 1000-1200 spine 100-80 gr. Package Contents: Carbon Express Pin Point Steel point with cone pin point design to eliminate deflections. Fits Carbon Express .234 ID shafts. Size 1: 350-420 spine 130-110 gr. Size 2: 500-650 spine 120-100 gr.