Unicorn Sigma One 100 Micron Black Dart Flights. These Sigma dart flights by Unicorn are designed to be used exclusively with Sigma dart barrels. This 100 Micron flight comes in a Black colourand features a White and Yellow Sigma One logo down the centre of the flight. Each pack contains 3 flights. Unicorn Sigma One 100 Micron White Dart Flights. These Sigma dart flights by Unicorn are designed to be used exclusively with Sigma dart barrels. This 100 Micron flight comes in a White colour and features a Red and Yellow Sigma One logo down the centre of the flight. Each pack contains 3 flights. Unicorn Sigma One 100 Micron Blue Dart Flights. These Sigma dart flights by Unicorn are designed to be used exclusively with Sigma dart barrels. This 100 Micron flight comes in a Blue colour and features a White and Yellow Sigma One logo down the centre of the flight. Each pack contains 3 flights. Unicorn Sigma One 100 Micron Red Dart Flights. These Sigma dart flights by Unicorn are designed to be used exclusively with Sigma dart barrels. This 100 Micron flight comes in a Red colour and features a White and Yellow Sigma One logo down the centre of the flight. Each pack contains 3 flights.