A precision upside-down spinning top with a minimum diameter of 0.5 inch (12 mm) made with precision processing technology in the Suwa region of Nagano Prefecture, which was once called “The Switzerland of the Orient”. Cut one by one using machine tools. It has the same level of precision as components used in automobiles, aircraft, medical equipment, etc., making it easily transfer the force from your fingers, letting the top easily spin upside-down under even light force. Creating a curved surface on top and a bumpy texture on the bottom makes it easy for the top to stand on its head. The handle is bumpy so it is easy to hold and easy to spin the top. When standing upside-down, the top doesn’t fall over even when tilted, and is also a lucky charm, called a ‘Success Top,’ because of the way it spins upside-down.It is also an excellent lucky charm, as a superstition to get your brain turning, you luck flowing, or money or luck headed your way. Aluminum tinted with anodized aluminum.There are uncolored parts on the contacts that have been installed to transmit electricity, these are not defects. Please Note: Due to potential choking hazards, keep out of reach of children under 3 years old.