1. Material: Neoprene
2. Size: about 42mm*20mm*2.5mm
3. Weight: about 4.4 grams
4. Features: abrasion and tensile resistance, not easy to aging, not easy to break
5. The glasses can't be hung up and can be used when dropped
6. It can be used at home, office, and sports, especially when playing sports, it is often sweaty, the glasses are not easy to hold, and it will be very comfortable with a glasses rope.
7. Professional sports training or competition occasions; mixed doubles, it is easy to touch with their partners. If there is a rope function, the glasses will be safe. If not, the glasses may fall and break.
8. For diving and swimming, the glasses are firm, allowing you to swim freely!
