• Usage – Check arrow straightness, correctly detect the balance straightness of your arrow, nock alignment, vane and feather balance, to ensure accuracy when shooting
• High-precision SS Bearings – SS crowned ball bearings provide large surface to support the arrow and achieve allow smooth operation even under high pressure.
• Grind the Burs of Shafts – Include Arrow Shaft Section Polishing Assembly with 2 pcs of adhesive sandpapers to grind the burs on cross-section of shafts while checking the straightness
• Sturdy and Durable – Premium aluminum-alloy main body with higher hardness and good strength, ensures the long service life
• Stable When Using – With approx. weight of 15.52 o.z., the arrow spine tester is firmly set on the surface while operating