Item Type: Electric scooter brake disc Material: Stainless steel Weight: Approx. 140g or 4.9oz Fitment: Fit for Ninebot F20 F30 F40, for KUGOO M4, for Speedway 4, for Zero 10 10X1Compatible Models: This brake disc is compatible with multiple electric scooters, including for Ninebot F20 F30 F40 for KUGOO M4 for Speedway 4 for Zero 10X, extending the service life of your electric scooters. 2Durable Construction: Crafted from stainless steel and treated with high temperature quenching, rust prevention, and other processes to ensure durability, deformation resistance, and rust free performance even in challenging environments. 3Enhanced Braking Efficiency: Provides excellent friction effect for improved braking performance, ensuring greater safety during rides. 4Easy Installation and Removal: Simple and hassle free operation, allowing for effortless installation and removal. Perfect replacement part for your electric scooters. 5Long Lasting and Reliable: Built with premium materials that withstand rigorous riding conditions, offering longevity and reliable performance. Providing you with a safe riding experience for years to come. 1 x Electric Scooter Brake Disc 6 x Screw Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.