This product is a Martyr Yamaha 80-100HP anode kit that includes an aluminum anode. The brand of the product is Yamaha and the manufacturer part number is MTRCMY80100KITA. It is designed for use with outboard engines and is categorized under boat parts and accessories on eBay Motors. Please note that further details about the product are not provided. FINAL SALE, NO RETURNS, CLOSEOUT SALE!!