This bike C-brake pads are made of rubber which is easy to install and very wear-resistant, the V-shaped guide mud groove design can effectively improve the braking performance and improve the harsh environment on the protection of the rims, suitable for most road brake bikes. Features - Color: Black.- Material: Rubber and aluminium alloy.- Size: 5 x 2.3 x 1cm.- Made of wearable rubber and durable aluminium alloy, rubber with grooves provides intense friction which can reduce noise effectively and provide good braking power in any conditions.- Specially developed for C-brake, easy installation with a screw, reduce squeal while braking does not damage the rim.- V-shaped tank design : V-shaped tank design will not hurt your wheel and and improve braking ability in most bad weather.- Good compatibility: This versatile c brake pads are suitable for most road brake bikes; Each pair C-brake pad has left and right part, without front and rear, every piece brake pad has a text mark.- Practical durable and excellent for mountain parts.Packing list: 4 x Road Bike Brake Pads