Welcome to my store, we provide high quality products and high quality service. If you have any questions about our products, please contact us. We will reply you within 24 hours.
Technical Specifications
Model: 689RS
Inner (d): 0.4 inches (9 mm)
Outer (D): 0.7 inches (17 mm).
Width (B): 0.2 inches (5 mm)
Grade: ABEC-7
Material: 52100 Chrome Steel
Seals: 2 seals
Quantity: 1 lot = 10 pcs
Notice:
Due to the difference between different monitors, there may be a little color difference, this is normal.