Thumler-Tru-Square #THU115. Rock tumbling is a hobby the family can enjoy together. If you are truly interested in producing flawless gems through the tumbling process, this A-R2 Double Rock Tumbler is ideal.
Thumler-Tru-Square #THU140. Rock tumbling is a hobby the family can enjoy together.The Model B Tumbler is extensively used by serious hobbyist, laboratories, schools, and industry for an unlimited variety of tumbling and mixing operations.