Features: Make from sandstone, strong and enduring, not easy to damage. Our dart sharpener ensures efficient removal of tip wear or barbs, ensuring consistent throwing performances. Insert it into V shaped slot, rotates, and enjoy easily maintenance without sacrificing precisions. Our Dart Sharpener can slip smoothly into your pocket or bag, easy to carry. Our stone sharpener is a useful tool that ensures a smooth throw every time. Perfect for any dart player! Specifications: Materials: Sharpening stone Quantity: 2Pcs/5Pcs Size: about 2.5x1.5x0.6cm/0.98x0.59x0.24inch Package Includes: 2/5Pcs Dart Point Sharpener note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.