National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby

This was a gift for my granddaughter. She is excited to see the finished gems in another week. My son said it was well made and they both are happy with the product.

Bought a cheaper version of this, and it broke a drive belt almost daily. Sent it back for a refund and bought this one. This is much better, and has been running for a couple of weeks now with no issues. It is also considerably quieter than the other one (although I still wouldn't want it in a room I spend a lot of time in). Feels good quality, it's been running well and it is really simple and easy to use. Very impressed.

Bought as a present the National Geographic Proffesional rock tumbler appeared to be the ideal gift and the rubber barrel appeared good value for money when compared with others. On opening the box it contains everything you would need to tumble, polish and shine the rocks, semi precious stones and crystals into beautiful objects. The process is made by NG's very easy to follow as 123 process and offers good results. Of the four tumbling processes we got to number 3 before we noted the rubber drive belt started to continually come off. On further investigation I could see a fine black dust where the tumbler was standing and identified the issue as poor quality large wheel that was very sharp and as such with every turn cut away at the drive belt until the side was flattened and would no longer stay in place and come off following a single turn. Not sure if this was the 🍋 in the basket but I could only see the spare replacement drive belt supplied may follow the same pattern of excelerated ware and decided to return the tumbler. As this product has increased in price since purchased I am now looking for a better quality replacement without all the extras. The NG Pro was a good all-rounder let down by some poor finish plastic component.

Great for a beginner. Handy booklet to tell you about the stones. I got 2 large chunks of Adventurine which look nice but can't be made into earring or pendants. Plenty of Rose quarts some of which disappeared to small pieces, could be used in UV Resin jewellery. 1 exceptionally tiny amethyst , very little use except for small pendant. Plenty of Tigers Eye. One largest piece of Sodalite. Quite a bit of 'Dalmation stone? . Dont know if Hematite is in my lot, some Jasper and poss agate ... hard to tell. The machine itself is quiet enough in my conservatory and can't be heard through the house, easy to use . The booklet gives clear instructions too which is good. The grits are only enough for one tumble but the polishing gem foam can be used 6 times. The tumbler is sturdy and easy to use but mine has a tendency to bleed to the bottom edge of the tumbler onto the rollers and butt up against the rotating wheels so I turn the tumbler tub around . Not sure what lasting effect this will have on the tumbler rubber. All in all I would recommend this set , as ive bought more gem stones from NG to practice on. Its neat and compact and easy to use, but for children I would recommend adult supervision and it to be kept out the way of curious little fingers. You need a lot of patience as each procedure takes days.

Only lasted about three months when I got the dreaded 'E' error code - to be fair the seller let me return the item for a refund with no quibbles. Apparently these machines are known to be prone to this error/breakdown. I purchased a second one but it only lasted around two months, they are just not up to the job. This time I've not returned the item but instead looked online (YouTube) for advice from rock tumbling enthusiasts as to how to modify the machine in order to bypass the error. Even if this doesn't work it is worth keeping the machine just for the rubber barrel, which is very good. I've also managed to purchase a British made rock tumbler from a different online seller so hopefully will have better luck with that one.

Works well

There is nothing to dislike about this tumbler, for the price compared to other AND being a hobbyist it suits us very well. My husband has had a stroke so can no longer do the things he used to I use this hobby to give him, 1 something to explore on utube to learn about and remember (very key) 2. To actually ‘ remember’ to check it 3. To give him something to look forward to doing like, searching for pebbles etc The excitement he gets from ‘opening the tumbler’ is lovely to watch, he loves what comes out. Later on this year he hopes and I hope he can start to use some tools to cut stones. He has lost 50% of his sight so it is going to be a big learning curve. This tumbler is just so easy for him to use and not to noisy either. We put it on a small carpet and that seems to work well. Thank you geographic people for helping us to move forward with a lovely simple hobby

Fantastic customer service. That part deserves five stars. It did as expected for a year. I think I've used it six times, so about six months of tumbling. Then it had just stopped mod tumble. I replaced the belt, but it's not that. The stones that come with it are really low quality, many really small and not worth it. So you'll want to get some better ones to tumble.

E davvero bello vedere i bambini quanta passione dedicano a questo attrezzo. La sua collocazione non può avvenire in casa in quanto un po' di rumore lo fa e andando di continuo anche per 7 GG di continuo non è il massimo. Lo consiglio a tutti i giovani esploratori che vogliono trasformare il grezzo in gioielli.

Wonderful little workhorse

Allt var bra

جهاز احترافي

Es muy práctico, de momento lo estoy usando en la primera fase con grano grueso y varias piedras necesitan más días, lleva como una semana en esta fase más o menos, y le he puesto más tiempo, el tambor es muy sencillo de abrir, como precaución uso guantes y mascarilla al sacar las piedras y lo hago en un lugar ventilado, hay muchas muestras lo que algunas son muy pequeñas y amatista, solo hay una y es pequeña, me hubiera gustado que llevara 2 o 3, el grano bien, aunque hay poca cantidad y solo me da para un uso, el tambor no hace mucho ruido, tuve que comprarle un adaptador al enchufe pues no venía incluido y no ponía nada en las instrucciones, antes de comprar el producto, pero lo compré en un bazar chino, en general el kit va bastante bien y da buenos resultados por ahora, pues me faltan las otras fases, bastante satisfecha.