Darts Corner Polycarbonate Shafts – Strong Vibrant Polymer Shafts. Includes Springs. Length: 35mm; (does not include thread – 5mm) Thread: 2ba Darts Corner Polycarbonate Shafts – Dart Stems – Smokey – Short-S1099 Gorgeous colours, tough stem, perfect to match your flights withDarts Corner Polycarbonate Shafts – Strong Vibrant Polymer Shafts. Includes Springs. Length: 40mm; (does not include thread – 5mm) Thread: 2ba Darts Corner Polycarbonate Shafts – Dart Stems – Smokey – Tweenie-S1098 Gorgeous colours, tough stem, perfect to match your flights withDarts Corner Polycarbonate Shafts – Strong Vibrant Polymer Shafts. Includes Springs. Length: 45mm; (does not include thread – 5mm) Thread: 2ba Darts Corner Polycarbonate Shafts – Dart Stems – Smokey – Medium-S1097 Gorgeous colours, tough stem, perfect to match your flights with