For Blade Holder w/ Quick Release 300309044 P511 P514 P515 300309032 fit Ryobi Before making a purchase, please make sure to confirm that the product is suitable for your machine, as the style of the pictures may appear similar, but the model may be different. Therefore, it is necessary to pay attention to the main models of the product. If you have any questions, please feel free to contact us and we will be happy to assist you. At the same time, we promise to unconditionally provide returns and exchanges in case of quality issues or any problems.