Materials:The Fender Brake Assembly is made of high quality Alloy and Plastic.Sturdy and durable Essencial Replacement Parts:This Fender Brake Assembly is easy to use. Product advantage: Upgraded the original brake plastic parts to metal. More wear-resistant. Suitable for: Ninebot Segway ES1 ES2 ES4 Electric Scooter Please note:This is not an original Fender Brake Assembly Product Description Materials: The Fender Brake Assembly is made of high quality Alloy and Plastic.Sturdy and durable Essencial Replacement Parts: This Fender Brake Assembly is easy to use. Suitable for: Ninebot Segway ES1 ES2 ES4 Electric Scooter Packing includes: 1 x Rear Brake Fender