You will receive 0.5kg coarse, 0.5kg medium, 0.5kg fine silicon carbide grits, grit saver, 0.5kg Aluminium Oxide tumble polish, 0.5kg of mixed size Ceramic Media, and instructions. Some people only use Ceramic Media in the final stages, after the stones start getting thin. Other people use ceramic as a filler for a tighter tumble. It's all up to you. Ceramic pieces will gradually wear down rock.