The Thames & Kosmos Rock Tumbler
SKU: 35261311958

The Thames & Kosmos Rock Tumbler

$44.96 $49.95
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No.2 Bestseller on communitymontessori.net >

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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

The Thames & Kosmos Rock TumblerLets rock and roll! Amp up your rock collection and explore the secrets of geology with the Thames & Kosmos Rock Tumbler! This custom designed, user friendly machine allows budding geologists and gem collectors to transform rough stones into beautiful polished rocks while exploring topics like erosion, weathering, and the geological rock cycle. The kit comes with an assortment of natural rock samples to get you started including tigers eye,

Let’s rock and roll! Amp up your rock collection and explore the secrets of geology with the Thames & Kosmos Rock Tumbler! This custom-designed, user-friendly machine allows budding geologists and gem collectors to transform rough stones into beautiful polished rocks while exploring topics like erosion, weathering, and the geological rock cycle.
    The kit comes with an assortment of natural rock samples to get you started — including tiger’s eye, aventurine, rose quartz, and more — as well as four polishing grits. Use the included jewelry settings to create accessories from your specimens. The powerful, long-lasting motor is built with durability in mind: once you’ve polished the included rocks, you can continue your experiments by tumbling rocks, glass, wood, and other materials you collect on your own. The leak-proof, noise-reducing barrel and built-in timer also aid in ease of use.
       The included manual and poster guide children on their rock-polishing adventures, providing usage instructions as well as scientific information about different types of rocks, how they are formed, and more.

  • Quality, innovative design provides a fresh alternative for a classic science device at a competitive price
  • Built-in timer includes different settings, allowing it to run for up to seven days
  • Includes jewelry fasteners to transform your rocks into accessories
  • 450g capacity (over 1 pound)
  • USB-C power supply
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: 35261311958

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4.6 ★★★★★
Based on 2288 reviews
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Verified Purchase
Cristian Lamport
Bozeman, US
★★★★★ 5
Great charging station
Color: Black
I love this charging station. It lives on my desk and it gets used all day every day with every device I can think of charges my phone, my MacBook Pro, my gaming, laptop, headphones, etc and it doesn’t quickly. I’ve had no problems with it whatsoever, and I love the retracting cables, and a little adhesive pad that keeps it in place on the desk. Well done!
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Reviewed in the United States on June 11, 2026
J
Verified Purchase
Jackson
Massapequa, US
★★★★★ 5
retractable cable is a game changer for desk cable management
Color: Black
The retractable cable on this power strip is the feature I didn't know I needed. Being able to extend exactly as much cord as you need and have the rest neatly contained means zero cable clutter on the desk. The 2.3ft cord is enough for most desk setups and the coil retracts cleanly every time. 100W total output is adequate for a multi-device setup — I run a MacBook Pro (via the 65W USB-C port), an iPad, a phone, and a small lamp off it simultaneously without issues. Three AC outlets cover anything that doesn't charge via USB. The form factor is compact enough that it sits on the desk surface without being in the way. Build quality feels premium, not flimsy. The InstaCord retraction mechanism is smooth and doesn't feel like it'll snap after a few months. One thing to note: this doesn't have a battery, it's just a power strip with a retractable cord. If you need a battery backup, look elsewhere. As a pure power strip with great cable management, it's excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
J
Verified Purchase
Jonathan M. Lisee
Natrona Heights, US
★★★★★ 5
Awesome desktop accessory!
Color: Black
Perfect desktop accessory for maximum functionality. 3 outlets on the back and 2 USB C cables that come out the sides. Holding to the side via a magnet. Charges my devices very quickly. Absolute workhorse for its weight and portability.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
Arturo R. Agramonte
West Palm Beach, US
★★★★★ 5
Minimalist's Dream
Color: Black, Color: Black
The ultimate desk decluttering tool! I am extremely happy with this 7-in-1 station. The best part is the built-in retractable cables; I no longer have to manage a mess of cords on my desk. It has a very small footprint but packs enough punch to power my laptop and several other devices at once. It’s a high-quality, compact solution that solved all my cable management issues. Five stars!
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Reviewed in the United States on April 18, 2026
A
Verified Purchase
Andrew
Phoenix, US
★★★★★ 5
Good Charging Station!
Color: Black
I’ve been using the Anker Nano 7-in-1 charging station for a few weeks now and overall I’m happy with it. I wanted something that could replace multiple chargers on my desk, and this does exactly that. Being able to plug in a laptop, phone, and a few other devices at the same time without swapping cords has been really convenient. The USB-C ports provide fast charging, including enough power for a laptop, which was important to me. Everything charges reliably and the unit doesn’t get excessively warm during normal use. The build quality feels solid, which is what I’ve come to expect from Anker products. It also doesn’t take up much space, so it works well on a desk or nightstand. One thing to be aware of is that when multiple devices are plugged in, charging speeds can vary depending on what’s connected. It hasn’t been a problem for me, but it’s worth noting. Also, it’s a bit heavier than a basic power strip, so it’s better suited for stationary use rather than travel. Overall, this is a well-made charging station that helps keep things organized and cuts down on cable clutter. If you have several devices to charge and want a cleaner setup, this is a good option. Pros: Charges multiple devices at once Fast USB-C charging, including laptops Solid build quality Helps reduce cable clutter Cons: Charging speed varies with multiple devices Slightly bulky for travel TL;DR: A reliable and convenient charging station that does what it’s supposed to do.
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Reviewed in the United States on January 28, 2026

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