Harrows Alamo VS2 Dart Shafts – Polycarbonate – Black Aluminium Top – Tweenie – Blue. These strong solid colour polycarbonate shafts with the Alamo name are available in 6 colours and 3 sizes with a black aluminium top for ultimate grip. Each pack contains 3 shafts.Harrows Alamo VS2 Dart Shafts – Polycarbonate – Black Aluminium Top – Medium – Blue. These strong solid colour polycarbonate shafts with the Alamo name are available in 6 colours and 3 sizes with a black aluminium top for ultimate grip. Each pack contains 3 shafts.Harrows Alamo VS2 Dart Shafts – Polycarbonate – Black Aluminium Top – Short – Blue. These strong solid colour polycarbonate shafts with the Alamo name are available in 6 colours and 3 sizes with a black aluminium top for ultimate grip. Each pack contains 3 shafts.