1. Material: aluminum alloy
2. Dimensions: 8.3 x 4.42 x 2.2 cm
3. Net weight: 146g/piece
4. Packing method: zipper bag
5. Adopt anodizing technology, sandblasting technology, no color fade, good hand feeling
6. Hexagonal lock design
7. High load-bearing, low noise
8. Precision bearings, smooth and long-lasting rotation
