The Martyr Anodes CMALPHAGEN1KITA Aluminum MerCruiser Alpha 1 Gen 1 Kit by Canada Metal is a 3 lbs aluminum anode kit with a 90-day warranty. It fits MerCruiser Alpha 1 Gen 1 models from 1983 to 1990 and has a shipping weight of 2.5 lbs. The kit includes a manufacturer part number CMALPHAGEN1KITA and is made in China. The dimensions of the package are 11" x 9" x 2". FINAL SALE, NO RETURNS, CLOSEOUT SALE!!