Three Gear Linkage Pure Copper Fidget Spinner Decompression Toy, Colour:Black

1. Gear: made of pure brass, imported from Germany with high-precision lathes 2. Exquisite grinding, no burrs, no hand, smooth rotation 3. Main body: aviation aluminum material, sandblasting effect, anodizing treatment, frosted feel 4. Bearing: imported stainless steel R188 type bearing, good wear resistance, long idling time 5. 3 gears, idling for 1 minute, super mechanical sense 6. Silent steel ball bearing, each gear has a separate bearing, one can drive multiple rotations 7. Upgraded model: a full set of detachable, reconfigurable, super mechanical sense 8. Function: decompression 9. Material: metal