Sigma pro shafts come in many different
designs. They have a unique technology and it's also built in flights
protectors. These types of shafts don’t break that easily and come with
replaceable flights holders in nylon. Sigma pro shafts are made in titanium
based material, nylon, magnesium and aluminum so you have a wide range to
choose from. The main advantage with this type of shafts is that it extends the
grip to base of your darts. Or you can say that it extending your darts.
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