This product is a nylon body post set designed for hobby RC cars and trucks, providing adjustable mounting points to securely hold the vehicle body shell to the chassis. The DTXC2618 body posts are approximately 4.5 inches tall and made from durable, bend-resistant nylon that helps absorb impacts during crashes and rough driving. Sold as a 2-piece set, they include adjustable collars and mounting hardware, allowing you to fine-tune body height between about 4.0 to 4.5 inches for proper fitment or custom setups.