>>> SOURCE Factory, welcome to inspect and guide, call, WX consultation.

>>> can accept customization (silk screen printing logo, different colors), etc.

Adjustable glasses cord mirror leg description:

special type for calf glasses: suitable for 2mm ~ 5mm glasses legs.

Glasses universal model: suitable for more than 5mm glasses legs.

Adjustable glasses length description:

children's model: the scaling range is 17-25cm.

Adult model: the scaling range is 20-30cm.

Adult extended length: telescopic range 20-35cm.

Adjustable glasses weight description:

dedicated calf glasses: 3.8 g-4.8g

glasses general-purpose models: 4.8g to 5.5g

if you don't know how to choose, consult customer service.