PENS › Thunderstorm Version 2 end cap Image 1 of 1 Thunderstorm Version 2 end cap $55.00 Sold Out Dark tumbled finish Titanium with blue/purple accents.Fits any BilletSPIN Soul Pen. Get notified when this product is back in stock Sold Out Added! Dark tumbled finish Titanium with blue/purple accents.Fits any BilletSPIN Soul Pen. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Gen II Copper Soul - Limited Drop $350.00 Sold Out Gen II Diamond Titanium Soul Pen $200.00 Gen II Diamond Zirc Soul Pen $300.00 Gen II Twist Design Thunderstorm Soul Pen $240.00 Gen II Diamond Oil-Slick Zirc Soul Pen $300.00 Sold Out