The product is a set of front vented and rear solid disc brake rotors, along with ceramic vented and solid brake pads, designed for a premium cycling experience. The brake rotors are manufactured by PremiumpartsWhosale and have an OEM part number of R-31543, 980752R, 980752FZN, P-1397, SBC1397, 10313970, and 131013970. With a highest exterior material of copper, the brake rotors offer high performance and durability. The package dimensions are 19 x 14 x 11.5 inches, and the product weighs 57.9 pounds. Ideal for sport cycling enthusiasts seeking reliable and efficient braking components.