RC racers, this brass hex hub adapter set is a simple but effective upgrade for your Kyosho Mini Z or similar 1/18 or 1/24 scale cars. Made from solid brass, so it's dense and durable—won't rust or deform easily. Each adapter weighs about 4 grams and adds extra weight to the wheels, which lowers the car's center of gravity. That helps with stability, traction, and handling, especially in corners. Size: roughly 16.5mm in diameter, 7mm thick, with a 2.2mm center hole and a 7mm hex. Comes as a set of 4 adapters with screws. Easy to install—just swap out your existing hub adapters. Improves overall performance and gives your RC a more premium, weighted feel. Perfect for drifting, racing, or just making your car handle more realistically. A small mod that can make a noticeable difference. Just check compatibility with your specific model before ordering.