This product is a set of high-quality adjustable weight rollers for Yamaha scooters, specifically designed for the TWh Jog Mio RS100 model. Each roller is crafted with precision to ensure optimal performance. The vibrant blue urethane material not only enhances the visual appeal but also provides durability and resistance to wear. The rollers are marked with 'TWh WG 8g', indicating their weight class, which allows for customization of the scooter's variator system, leading to better acceleration and performance tuning. The inclusion of a metallic core likely ensures smoother rolling action and increased longevity. Ideal for scooter enthusiasts who demand both a personalized touch and efficiency in their vehicle's drivetrain.