This is a set of rear brake shoes (part number 081-0523) designed for Mazda vehicles including the R100 (1970-1973), RX7 (1979-1980), and GLC (1977-1981). Made of low-metallic NAO material for quiet operation, these vintage parts are manufactured by Beck/Arnley in Japan. The set includes four brake shoes with a width of 1.3 inches and features OE/OEM part numbers 048349230, 396026310, and 048333310. It is important to note that this product may contain chemicals known to the State of California to cause cancer and reproductive harm, as indicated by the California Prop 65 warning.