Features: Made of high intensity iron material wear-resistant and corrosion-resistant. Controlled by the brake line keep good sensitivity and practical to use. Exquisite surface paint process and delicate texture smooth and durable. Easy to install and detach convenient to operate the brake and reliable. Great accessory for Kugoo M4 kick scooter. Specifications: Material: Iron Color: Black + Red Package Size: 9 * 9 cm / 3.5 * 3.5 in Package Weight: 180 g / 6.3 oz Package List: 1 * Disc Brake 1 * Spring 2 * Screw