Smithsonian Rock Tumbler and Accessories

I thought my granddaughter would enjoy making jewelry and I always wanted to find out about polishing rocks. I didn't realize it took days to make. I spent $69.99 plus tax and only tried it once. All the cords, key rings, and rings are included. It is a great science, technology, engineering, and math activity. I bought Smithsonian because I wanted a well-made one.