SKU: 35388935778

NATIONAL GEOGRAPHIC Rock Tumbler Grit Refill Kit - Polish 20 lbs, Medium, Black, Model NGBULKGRIT, Silicone Tumbling Supplies

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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

NATIONAL GEOGRAPHIC Rock Tumbler Grit Refill Kit - Polish 20 lbs, Medium, Black, Model NGBULKGRIT, Silicone Tumbling SuppliesThe National Geographic Rock Tumbler Grit Bulk Pack is an essential kit designed for rock tumbling enthusiasts. This comprehensive set includes everything needed to transform rough rocks into beautifully polished gemstones. Ideal for hobbyists and educators alike, this grit pack enables users to achieve professional quality results at home. This rock tumbling kit contains over 3 pounds of high quality silicon carbide grit, specifically formulated for

The National Geographic Rock Tumbler Grit Bulk Pack is an essential kit designed for rock tumbling enthusiasts. This comprehensive set includes everything needed to transform rough rocks into beautifully polished gemstones. Ideal for hobbyists and educators alike, this grit pack enables users to achieve professional-quality results at home.

This rock tumbling kit contains over 3 pounds of high-quality silicon carbide grit, specifically formulated for effective rock polishing. The four-stage grit system ensures a thorough and efficient tumbling process. Each stage is carefully engineered to progressively smooth and polish rocks, making it suitable for all types of tumblers. The included 10 mL scoop allows for precise measurements, ensuring optimal grit usage for up to 10 pounds of rocks.

Key Features:
  • High Quality Grit: Contains four stages of premium silicon carbide grit for optimal polishing results.
  • Versatile Compatibility: Works seamlessly with all rock tumblers, providing flexibility for users.
  • Easy Measurement: Each grit stage is packaged in wide-mouth containers with secure screw-top closures for easy access.
  • Clear Instructions: Includes comprehensive rock tumbling instructions to guide users through each polishing stage.
  • Generous Quantity: Enough grit to polish up to 20 pounds of rocks, gems, and glass, making it a cost-effective choice.
  • Educational Value: Supports hands-on learning and exploration for children and adults interested in geology.
  • Exceptional Support: Backed by National Geographic's commitment to quality service and customer satisfaction.

The National Geographic Rock Tumbler Grit Bulk Pack is perfect for individuals looking to explore the fascinating world of rock tumbling. Whether you are a novice or an experienced tumbler, this product is designed to enhance your rock polishing experience, making it an excellent addition to your crafting supplies. With its high-quality materials and detailed instructions, users can confidently create stunning polished stones while enjoying the educational benefits of this hands-on activity.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 35388935778

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Emeraldcity
Lexington, US
★★★★★ 5
Fun toy
Color: Orange
My standard poodle loves this toy. It holds a charge for several hours and is well made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
B
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bratty one
Waukegan, US
★★★★★ 5
Holds up pretty well.
Color: Green Helix, Size: Medium
Holds up against my velociraptor! Much better than some of the other holey balls that get torn apart quickly. I think this is a great idea to reuse old shoe soles into toys for the heavy chewers like heelers. I would like to see a large ball like 10-12 inch diameter, so they can push and throw it around.
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Reviewed in the United States on March 29, 2026
L
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Ljh
New York, US
★★★★★ 1
Quality and performance
Color: Tie Dye Purple/Blue Pop It, Size: Small
My dog has shredded it in 15 minutes, not worth it
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Reviewed in the United States on October 1, 2025
L
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Lise Smith
Omaha, US
★★★★★ 5
Molly loves her ball!
Color: Blue Helix, Size: Large
Soft and easily caught by a rambunctious Border Collie. She loves her ball and points to it with her nose when she's ready for another game of "ball". Easy to throw and easy to clean of slobbers!
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Reviewed in the United States on May 11, 2026
B
Verified Purchase
Bonnie
Massapequa, US
★★★★★ 3
Neckless not in box did not receive anything in the box no neckless!!!!!!
Color: Yellow Helix, Size: Small
With in ten minutes my dog had the ball broken in pieces
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Reviewed in the United States on April 27, 2026

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