NATIONAL GEOGRAPHIC Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with any Rock Polisher & Tumbler Supplies | Over 3 Lbs. of 4-Stage Tumbling Media, Polishes Up to 20 Lbs. of Rocks, Wide-Mouth Containers, Compatible with All Tumblers

Features

• HIGH QUALITY - This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on up to 20 lbs. of rocks, gems, glass, and more!
• EASY TO USE, FOUR-STAGE ROCK GRIT - The first rock tumbling grit stage provides initial shaping, the second smooths rock surfaces, the third pre-polishes rocks, and the fourth provides the final polish!
• COMPATIBLE WITH ALL TUMBLERS - This complete 4-step rock tumbler grit refill kit works with all rock tumblers. For best results, use with National Geographic Rock Tumblers and rock tumbling supplies.
• EASY TO MEASURE AND STORE - Each rock tumbling grit stage is packaged in a wide-mouth container with secure, screw-top closure.
• AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

Description

This rock polisher grit refill pack comes with enough high-quality silicon carbide grit to put a dazzling polish on up to 20 lbs. of rocks, gems, glass & more! The first stage provides initial shaping, the second smooths rock surfaces, the third pre-polishes rocks & fourth provides the final polish. The National Geographic Rock Tumbling Grit Bulk Pack contains over 3 pounds of rock polishing grit, compatible with any tumbler! This Kit Includes: This four-stage silicon carbide grit for rock tumbling systems is the ideal way to give rough rocks a smooth, polished look. The first rock polishing stage smooths rough edges and provides initial shaping. The second stage smooths the rock surfaces even more. The third stage provides a strong pre-polish, followed by the fourth stage which completes the grit polishing process. The 10 mL scoop in the grit refill kit ensures accurate grit measurements for every stage, allowing you maximize your grit usage for up to 20 pounds of rocks! This rock tumbling grit refill pack is compatible with any tumbler on the market, but for best results, use with National Geographic tumblers and rock tumbling supplies, including ceramic media and GemFoam. We make the highest quality hands-on science products, and all are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations. Your purchase has purpose! Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.

Brand Name: Blue Marble

Age Range Description: 14 years and up

Sub Brand: NATIONAL GEOGRAPHIC

Manufacturer Warranty Description: We're proud to make the highest quality products which are backed by exceptional service.

Manufacturer Maximum Age (MONTHS): 1188

Number of Packs: 4

Manufacturer Minimum Age (MONTHS): 168

Global Trade Identification Number: 36

Set Name: Rock Tumbler Grit Refill Kit

Manufacturer: JMW Sales, Inc.

UPC: 816448020636

Unit Count: 1 Count

Included Components: 4 Stages of Rock Polishing Grit, 10 mL Grit Scoop, Rock Tumbling Instructions

Item Type Name: Rock Polishing Grit Media

Model Number: NGBULKGRIT

Manufacturer Part Number: NGBULKGRIT

Number of Players: 1

Educational Objective: STEM

Supported Battery Types: No batteries required

Operation Mode: Manual

Theme: Rock Tumbling

Color: Black

Size: One Size

Item Weight: 1.78 kg

Item Dimensions: 5.5 x 5.5 x 4.25 inches

Material Type: Silicone