This set of road brake pads are constructed with durable rubber and stainless steel, which can effectively improve the braking performance. The rubber pads are designed with grooves, which can provide strong friction. They can also effectively protect the wheel rim from scraping and reduce the braking noises. They work well for most road bike and system like . Feature - Color: Black - Material: Rubber and stainless steel - Size: 7 x 4.1 x 1.5 cm - Made of rubber and stainless steel, sturdy, wear-ressitant and non-slip. - Stick to a screw, easy installation. - Rubber with grooves provides strong frictional force. Water-proof and weather-proof. - Reduce the bike hindrance, protect the wheel rim from scraping, reduce squeal when braking, endure consistant and bumps. - Specially designed for road bike and mountain bikes system like . - Great for mountain bike practice, long-distance travel and so on. Package list: 3 x Pairs of Mountain Road Cycling Bike Pads