Quantity:About 1000pcs. Mini O-Ring for Watch Crown for Waterproof Watches. We will reply you ASAP. Contains 12 popular size 2.8mmx1.8 x 0.5. 2.4mmx1.4 x 0.5. 2.0mmx1.0 x 0.5. 1.9mmx0.9 x 0.6.
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