Features: Increase the Spin of the Arrows: Increases the accuracy of the arrows is still up to debate. A must-have for arrow sports activities. Functions: Spin vanes create more drag at the back and of the arrows which will straighten out faster. Good aid for arrows. Weight of the Vanes: Lighter than standard vanes therefore the overall arrows will be a bit lighter. Which means it is easier to use and can fly further. Durable and Lightweight: Our Spin Wing Vanes come with a self-contained storage box they will not be lost or damp. They are lightweight and more forgiving to extend long-range use. Generally Applicable:Our Spiral Fletches Feather is high-performance and practical and suitable for recurve carbon arrows and aluminum arrows. You can rest assured to buy. Specification: Product Name: 2.3-inch whirling feather Product Size: About 2.3 inches Product Category: Right-handed feather Product Color: Red gold silver rose red blue purple white black Product Packaging Size: About 7.6*5.8*2.9cm/2.99*2.28*1.14in Product Weight (including packaging): About 28g includes: 50 pcs / Box* Spin Vanes