This AK4 dart flights should be combined with AK7 dart stem/dart shaft. Weight:different weight with TERO AK7 A/B/C/D/E/F/G/H dart shaft,Pls refere to the pictures. Size:With TERO AK7 A/B/C/D/E/F/G/H shaft,dart shaft length in 25mm/32mm/34mm/37mm/40mm/43.5mm/47mm/53mm,help you to find a best length and best grip to improve your dart accuracy.
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