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https://detail.1688.com/offer/611355901083.html?spm=a2615.7691456.autotrace-offerGeneral.1.2db62d7b4X8Q69

Suitable for use all year round, half cotton thread and half rubber material, good anti-slip and sweat absorption performance.

Length approximately: 270 mm;

Approximate weight: 50+-3 grams;

The diameter of the top cover is about 28 mm;

Caliber: 60R; standard size