Optical Glass Spinning Top Base, Double Concave Crystal, Diameter 4.72"(120mm), Thicker 0.55"(14mm), Smoother Low Friction Helps Extend Spin Time, Impact-Resistant (L, Black)

Additional Details from the Manufacturer

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More features

• ★ High Quality: The spinning top base is made of K9 crystal optical glass, with greater hardness, greater wear resistance and better smoothness. High polishing by hand, the surface is very smooth and round.
• ★ Double-sided Concave Design: The concave design of the surface prevents the spinning top from leaving the base during rotation, while helping the gyro find the center point faster during rotation, allowing you to have an excellent gaming experience. The curves of the double-sided concave are different, which can meet different styles of spinning top.
• ★ Extended Gyro Rotation Time: The highly polished crystal glass is very smooth and has little friction, which can effectively extend the gyro rotation time and increase the record of your best time to a higher height.
• ★ Easy To Use: Provide a larger diameter base, 10cm/3.94" and 12cm/4.72" respectively, with a large enough surface area to easily practice the gyro to prevents the gyro from falling off the base during startup due to its small surface area.
• ★ Impact Resistance: Our crystal base is thicker and heavier, which can better withstand the impact of the gyro contacting the base when it starts; because most gyros are stainless steel or copper products, with high density and heavy weight, it has a large impact force when starting to spin, which is very easy to crack the thinner base.
• ★ More Options: We provide six colors and two sizes of bases for gyro enthusiasts to choose. You can choose according to your favorite colors, proficiency and preferences to meet the different needs of customers.