Surface spray technology and one-piece die-casting make it durable and anti-corrosion. Extended driving arm makes braking stable.Enlarged semi-metal heat sink can strengthen the braking force. Equipped with screws, it will not loosen, and is stable and lasting.Made of high-strength metal material, the product is durable.The length of the product is 9cm, the width is 6cm, and the height is 5cm.It is suitable compatible most bikes.Item Name: Bike Disc BrakeMaterial: MetalStyle: Front, RearColor: Black, RedA-pillar: 75mm, B-pillar: 51mmFeatures: Universal, Durable, StableSpecifications: F160-R140 (Front Brake), F180-R160 (Rear Brake)Size Details: 9cm x 6cm x 5cm/3.54" x 2.36" x 1.97" (Approx.)Notes: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.Package Includes:2 x Screws 1 x Bike Disc Brake