1. The diameter of the silicone sleeve hole is 4mm: it is suitable for glasses legs with a width of 5-10mm at the largest part of the tail and a circumference of 15-25mm
2. Polyester spandex fabric, delicate touch
3. Moderate elasticity, lock the glasses tightly without slipping
4. Wear-resistant and non-slip, good comfort
5. Material: nylon, silicone
6. Adjustable range: 17-25cm
7. Single weight: about 3.7g
Specification:
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