1.SPINE WELL TO FLY WELL: In some cases arrows are not perfect, such as having dents, not being straight or having other imperfections that cannot be seen by observation, and it is difficult to see all of these imperfections unless the arrow is spin tested. When a tournament or hunting season is approaching, it is necessary to ensure that the arrow that doesn't fly true is not in your quiver. An arrow spinner is the easiest way to inspect it. 2.PREMIUM ARROW ROLLER BEARINGS: Premium stainless steel & ceramic roller bearings, the surface is smooth and flawless, rotate smoothly with little noise and will not jam like other inferior bearings. 3.ALL ALUMINUM EXTRUDED BASE: Sturdy and durable, wider base makes the whole arrow checker more stable, excellent choice for pro shops/individuals. 4.SHOOT WITH CONFIDENCE: Whether you're checking broadhead alignment or arrow straightness, our Arrow Spinner is the essential tool for every archer to hit the target with confidence. Enhance your shooting experience – spin with precision, shoot with accuracy.