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. 1 gear, 1 bearing, idling for 1 minute, super mechanical sense 6. Material: metal 7. Function: decompression 8. Size: 22.5x15mm 9. Gross weight: 15g
