• Budding geologists can easily transform rough stones into smooth, beautifully polished rocks!
• The powerful, long-lasting motor is highly durable and the leak-proof, noise-reducing barrel aids in ease of use. Also includes a built-in timer with various settings, allowing the tumbler to run for up to seven days!
• Kids ages 8 & up can start with the genuine rock samples that come with the kit -- including amethyst, aventurine, rose quartz, and more -- as well as four polishing grits. Then move on to other rocks, glass, wood, or other mateirals you collect on your own!
• Explore the secrets of geology, diving into topics like erosion, weathering, and the geological rock cycle as you amp up your rock collection, guided by the included manual and poster.
• Includes jewelry fasteners to transform your rocks into accessories. The rock tumbler has a 450g capacity (over 1 pound) and a USB-C power supply

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