Blue Marble National Geographic Platinum Series Ultra Quiet Rock Polisher Kit – 2 lb Barrel, GemFoam, Rocks

Overview

Meet the Blue Marble National Geographic Platinum Series Ultra Quiet Rock Polisher Kit, a patent-pending setup designed for indoor use by both kids and adults. It features a spacious 2-pound barrel, three selectable speeds, and a timer with days and hours to tailor sessions to your craft goals. This kit blends hands-on learning with a tactile, satisfying process that many hobbyists enjoy as they watch rough stones transform into smooth, glossy pieces over multiple rounds.

Quiet, indoor-friendly design

Designed with a sound-dampening cover, the tumbler operates more quietly than traditional models. This thoughtful touch makes it suitable for garage, classroom, or apartment settings, so you can tinker, test, and refine your technique without excessive noise disruption.

Everything you need in one box

The Platinum Series is an all-in-one experience. In the box you’ll find 1 pound of rough rocks, four bags of grit, five jewelry fastenings, a redesigned strainer, and our exclusive GemFoam rock polisher. Each element is chosen to support a complete, start-to-finish tumbling journey.

• Three speeds and a timer with day and hour settings let you tailor pacing for different material types and desired finishes.
• GemFoam provides a final polishing option—add water and GemFoam after your last cycle for an extra-brilliant shine.

GemFoam for a brilliant finish

GemFoam is a reusable polishing aid that can elevate the final surface of tumbled rocks. When used as directed after the last tumbling stage, it contributes to a smooth, vibrant appearance that many hobbyists associate with a professional touch.

Quality and support you can rely on

Blue Marble is recognized for crafting education-forward products that spark curiosity and creativity. A dedicated U.S. support team stands ready to assist, helping you get the most from the Platinum Series as your projects evolve.

What you gain

• Hands-on learning and creative expression through tangible, repeatable crafting activities.
• Quiet operation and a compact footprint suited for indoor spaces.
• Flexible timing to work with different rock types and project deadlines.