Features: Make of Iron materials, strong and enduring, wear resistance and rustproof, and not easily damage. Antiskid texture, suitable for grippings and throwing. None burrs, exquisites. Suitable for most standard 2BA thread Darts tip and tail. Provide excellent balances and stability, make you better train Darts throwing. Good Accessory for your training and play. This Darts Barrels is suitable for both novices and professional. Specifications: Materials: Iron Styles: 16g/20g Color: Black/Silver 16g size: about 49.5x8mm/1.95x0.31inch 20g size: about 53x8.5mm/2.09x0.34inch Package Includes: 3Pcs Darts Barrels note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Make of Iron materials, strong and enduring, wear resistance and rustproof, and not easily damage. Antiskid texture, suitable for grippings and throwing. None burrs, exquisites. Suitable for most standard 2BA thread Darts tip and tail. Provide excellent balances and stability, make you better train Darts throwing. Good Accessory for your training and play. This Darts Barrels is suitable for both novices and professional.