Science MAD! SM42 Rock Tumbler, Multi

Product Description"Polish rocks to create semi-precious gemstones. Learn about the exciting hobby of rock tumbling with this set. Includes all the accessories you?ll need to start polishing dazzling gems. Use the included ring fastenings to create beautiful homemade jewellery! Rock tumbling is a fun activity for children of all ages and promotes an interest in geology and science.YOU NEED TO S...