DescriptionWith high precision, high durability and strong locking. These retaining rings mainly play the role of axial fixation. CNC high precision numerical control, precise hole position. Uniform surface incision, reliable quality and long service life. 12.9 grade high-strength screw, strong and durable fastening.Features-Color: Silver.-Material: Aluminum. -Size: About 2.00X2.00X0.60cm /0.79X0.79X0.24inch. -With high precision, high durability and strong locking. -These retaining rings mainly play the role of axial fixation. -CNC high precision numerical control, precise hole position. -Uniform surface incision, reliable quality and long service life. -12.9 grade high-strength screw, strong and durable fastening.