Click or scroll to zoom Tap or pinch to zoom Formula Sports Dart Sharpener FORMULA SPORTS Save 0% $2.99 or 4 x fortnightly payments of $0.75 with Own it, interest free from $10 per week. More info Size guide 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Size guide Add to cart Keep your darts sharp for best results with this dart sharpener!