Check the listing for details. 30" Archery Carbon Target Hunting Arrows Adjustable Nock Replaceable Field Point. Color: Black Shaft, Condition: New. Listed at 39.69 USD. 30" Archery Carbon Target Hunting Arrows Adjustable Nock Replaceable Field Point Material: Carbon with logo printed Shaft length: 30 inch for your choice Shaft diameter: Outer 7.8mm Inner 6.2mm Spine: 500 GPI: 13.0 grains Weight: About 35g each for 30 inch arrow, about 33g each for 28 inch arrow, about 31g each for 26 inch arrow Suit for: 30-60lbs compound, recruve and long bow Condition: New item Vanes: 3 inch fluorescent red+ white, bright and easy to find Nocks: Double plastic nock, removable, without glue Tips: The 100 grain tips can be replaceable, the insert is glued User Notice: 1. Do not shot against concrete wall or any hard substance. That may damage the arrows. 2. Use a suitable bow. Shooting from a bow with draw weight over recommended value may damage both bow and arrow. 3. Please use an arrow rest. Or the bow may be damaged by arrows. 4. If the plastic vanes shape is distorted, you can put the vanes into 176℉-194℉ hot water for 5-10 minutes, or straighten them by using an air dryer they can be recover to original shape.