Features:
Rubber O-ring watch gaskets are used to keep watches water resistant.
Made of rubber material, flexible and wear-resistant, durable.
The crown O-ring is a good accessory for repairing the watch and is practical.
Suitable for watchmakers and watch repairers, easy to use.
Excellent workmanship, suitable for all kinds of watches, widely used.

Specification:
Material: rubber
Size: 3.39*2.52*0.63in/8.6*6.4*1.6cm
Color: black

Package Includes: 500pcs (1 box)

Notes:
Please allow minor errors due to manual measurement.
The colors may be a little difference for the different monitor display.