Material Aluminum,Rubber,Aluminum Alloy Color Brake Pad Number of pieces 12 About this item Package includes: You will get 6 pairs of Brake Pads in black and 1 hex wrench to install and remove. Package includes: You will get 6 pairs of Brake Pads in black and 1 hex wrench to install and remove. Strength performance: Brake pads are designed with an arc shape to fit the shape of the wheels, and can provide excellent friction and braking force when braking, reducing the damage of sand on the wheels. Wear-resistant materials: The bicycle brake pads are made of high quality aluminum alloy and natural rubber, which are durable and very practical. Widely used: when the Brake pads are worn out, our V-brake pads are very suitable for replacing worn brake pads. Can be used for various types of electric bicycles, mountain bikes, children"s bicycles. Compatible with various V-brake systems such as these systems (Avid, Cane Creek, Clarks, Contec, Promax, Shimano, Sram, Tektro, XLC), etc.