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https://detail.1688.com/offer/616611029539.html?spm=a2615.7691456.autotrace-offerGeneral.22.4a012d7bbTI2gv

It is made of semi-cotton and semi-rubber, suitable for use in all seasons. The cotton-containing yarn has a good anti-slip and sweat-absorbing effect.

Standard size:

Gray length: 26.5 cm;

Approximate weight: 53+-3 grams;

The diameter of the top cover: 28 mm;

Mounting rod diameter: 60X;

The size of the bold model is about 2mm thicker than the standard model, the weight is changed, the diameter of the rod is the same, and the material is the same.