Tryes Rock polishing glass kit with noise reduction cover, speed control and timer, includes 4 polishing grains, rough precious stones, learning guide, etc., great scientific gift for all ages.
Double Noise Cancellation Functions: The professional rock glass of Tryes has a greater advantage: noise reduction The polishing glass of rocks with cover is 40.6% quieter than others, and the tire gum is 75% quieter than plastic barrels.
Long-lasting rock vase: the improved leakproof barrel is lined with rubber designed to stay resistant and calm. This is a high quality rock glass that lasts many years.
A rock glass kit: the rock cup game comes with everything you need, including 1 rock glass, 2 bags of rough gems, 4 polished beans, 2 polished sponge blocks, 1 filter, 1 bag of accessories, 1 current adapter and a detailed learning guide. A perfect gift for adults and children
Easy to use and education: 2-speed digital adjustment and 7-day timer, there are 3 processes in adjustment for grinding stones (as per instructions). The rock glass with color printing instructions takes you to operate the machine step by step and tells you the fascinating history of precious stones
Make your own precious stones: enjoy the fall process There is a complete process through which the rough rocks pass to become the shiny stones. It's the time you've lost for your stone that makes your stone so important