Feature:
1. Made of high quality rubber material and has a long service life, and practical.
2. The o-ring with 3 thicknesses and 10 sizes to meet your different needs.
3. Professional watch repair tools, great accessory for watch repair and DIY watchmaker.
4. Can cover the gaps between the watch band and movement for watch waterproof.
5. Excellent replacements for different sizes from 31mm-40mm.

Spec:
Condition: 100% Brand New
Item Type: Watch O-Ring Gasket
Material: Rubber
Dia: 0.7mm, 0.8mm, 0.9mm
0.7mm, 31mm-40mm, 10 sizes, about 50pcs per packet, a total of 500pcs.
0.8mm, 31mm-40mm, 10 sizes, about 50pcs per packet, total 500pcs.
0.9mm, 31mm-40mm, 10 sizes, about 50pcs per packet, total 500pcs.

Package List:
30 x Bag of Watch O-Ring

Notice:
Purely hand-packed, the quantity may be a little error(some more, some less), depending on the real objects. Thanks for your understanding.