NSI Rock Tumbler

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Today: $45.03
At other retailer: $50.71 Save $5.68 (11%)
ITEM# 12323731
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    NSI Rock Tumbler
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    ITEM#: 12323731

    • Change rough stones into beautiful, high-luster gemstones with this heavy-duty rock tumbler
    • Art kit includes amethyst, jasper, agates and other semi-precious stones
    • Hobby kit provides a great activity for kids and adults alike
    • U.L. listed
    • Package includes rock tumbler machine, rough semi-precious stones, grit, polish, jewelry settings and detailed instructions
    • Recommended for ages 10 and up

    CAUTION - Electric Toy: Not recommended for children under 10 years. As with all electric products, precautions should be observed before handling and use to prevent electric shock.


    Gender Boys
    Theme Children
    Dimensions 13.0x13.0x5.0
    Materials Plastic, Rocks,
    Model Number 635

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • used once, got tired of the noise

      this thing is loud.. unless you have a garage and can close the door, don't get this..you need to tumble rocks in the plastic tub for 24 hours...think about it

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    • Gourd Lady

      This rock tumbler was a birthday gift for my grandson & he says it is the Greatest!

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    • So far so good

      I've had this tumbler tumbling for about 2 weeks or so, working just fine. I originally purchased as a Xmas present for my grandchild, who is almost 9. I decided to keep it and let all my grandchildren enjoy the results, without the noise and the electrical hazard issues. I'm retired and have more time to help with the tumbler, plus I can put it in my unfinished basement, out of the way, and in a cooler to lessen the noise. The tumbler is pretty small, so can be used with small rocks. I think the kids will really enjoy the results...in another 2-3 weeks.

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    • Rock Tumbler

      My granddaughter truly enjoyed this product. Although a bit loud we all enjoyed the results of this product.

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    • Rock tumbler

      Bought the rock tumbler for my kids they love watching how the rock looks like awhen I goes in and what they look like after.

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    • Rock Tumbler was a hit!

      My daughter has a small jewelry making business and wanted this to expand her line. She is loving it so far! It does a good job with the stones she has collected.

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    • Rock Tumbler

      Good quality!Child enjoy the experience of polishing rocks.

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    • Good Gift

      Purchased this for as a gift for my son. Although it is a bit small he loves it and it has been running since Christmas day. I would recommend it to anyone who has a rock hound in their house.

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    Questions & Answers

    Get your product questions answered right here.
    • Can this be used to tumble sea glass?

      • Hello clp4006, we can appreciate the fact you want a firsthand account of the product. You will receive an email notification every time you get a response. Thank you for shopping with us.

    • Why did you choose this product?

      • For classroom activity with students.

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    Shipping & Returns


    Usually leaves our warehouse in 1-2 business days. *

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    * For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.