1.UNBREAKABLE ALUMINUM SHAFTS - These 2BA dart shafts are made of solid aluminum with anodized finish, more durable than PVC rods. Also designed with locking hole to allow you to use extra leverage to tighten the shaft to your barrel. 2.PRECISION-MACHINED BARRELS - High quality brass plated steel barrels with good balance and unique styling. Strategically placed knurling and deep grooves can provide excellent gripping points and enhance your control. 3.PERFECT FOR ALL LEVELS - Each steel tip dart weighs 18 grams. Whether you are a professional dart player, or just play for fun, these darts should fit the bill. All 15-pack steel tip darts come in a round jar. 4.ESSENTIAL DART ACCESSORIES - Our dart set comes standard with 5 style polyester flights and dart sharpener which is essential for sharpening your dart points when playing on used or dry dartboard. And rubber O'rings are installed on dart shafts to prevent loosening.