Professional Rock Tumbler Kits for Adult Kids Stem Project-3LB Large Capacity Rock Polisher, 1LB Quality Rock, Wear TPU Belt, Speed&Time Control, Learning Guide, Science Kits for Kids Geology Stem Toy

I have several other rock tumblers and one vibrating rock polisher, so at any given time I have at least one of them running. I like the larger size of this barrel, and I like that is has a fairly large internal lip where the internal lid rests, which gives extra protection from potential leaks. The external lid and thumbnut feels solidly built, and I have absolutely no fear of this barrel leaking. With that said, this is by far the noisiest rubber-drummed tumbler I currently have. Maybe it's the larger barrel size for the recommended weight limit this tumble has, or maybe it's just a noisy tumbler. I do like it, but you don't want to be in the same room with it when it's running.

Does a good job, but mine quit working after 3 batches of rock. Does beautiful job, I just want it to last longer.

Got this for my granddaughters. They both love it, which is amazing for something that takes about 3 weeks to complete, now they just want more raw stones and grit for Christmas! Oh, and fittings to make jewelry, so this product.is kind of life changing for them.

I love how fast and efficient this little machine is when it comes to tumbling rocks. I just wish they had a machine that would tumble 6 lb in one tub using the same setup as a smaller one for a reasonable price.

It's a rock tumbler. Tumbling rocks takes at least one month per batch. So it's supposed to run more or less 24/365. The motor died after less than 11 months of operation. I expected at least five years of service.Both of the original drive bands wore out after 2-3 months of service. There are good replacement upgrades available for cheap.I'm going to try to replace the motor with something that will last.