Our Element Brass C-Hubs are precision machined from solid brass, not cast like may others that are available. The clamping design and locking grub screw make these a solid addition to our Element Beef Tubes.Weighing in at 36 grams for the pair. This upgrade offers the increased performance of a metal c-hub, with the improved stability that comes with increased unsprung weight, which is what Beef Tubes is known for. Package includes two c-hubs and hardware. (Images are for reference only).