You will receive both boxes for a total of 4 cartridges. The Brother AX10 & Panasonic KX-R/W Typewriter Ribbon by Dataproducts is a compatible ink ribbon designed for use with Brother and Panasonic typewriter models. This black ribbon is suitable for various universal typewriter brands and is specifically designed to meet the quality standards of the Brother AX10 model. Made by Dataproducts, this ribbon ensures reliable performance and clear, crisp printing results for your typewriter needs.