Product Description – Thunder The Thunder spinner features a dual-bearing linkage system using internal (R188) and external (6703) bearings, creating a dynamic interaction between the rotor and main body. The internal rotor can hold magnets or Buckyballs without glue, while the main body houses large magnets (also installed without glue) to generate a powerful attraction/repulsion linkage. This innovative structure allows the components to drive each other during asynchronous rotation, producing a thunderous sound and delivering a strong, tactile vibration in the hand, creating a highly immersive fidget experience. The external shells are fixed with screws and can accommodate four 2×12mm and four 1.5×6mm tritium tubes, producing stunning front and side light-shadow effects that enhance both visual and interactive appeal. Specifications: Size: 44 x 33mm Weight: Stainless Steel: 88g, Titanium: 53g, Zirconium: 75g Bearing: R188+6703