1, metal color if not metal color more will fall out of color. Metal is easy to cause skin sensitivity, general skin allergies to metal can choose titanium, but the price is extremely expensive, you can buy a few hundred to thousands of dollars, but if you understand the insiders of the optical industry, you can bargain. Frames of other alloys are not too expensive.
2, plastic is generally known as plate, generally no skin allergies, cheaper, color and style variety, the cost of most of the dime to a few dollars, but the sales price should be within one hundred dollars (must haggle). The good and bad of the eye frame also depends on whether it is fashionable or mature, you can match different glasses with different occasions and clothes.
3, metal with a kind of noble, generally suitable for formal occasions or mature people, and not easy to damage. Plastic ones are generally more diverse, with many different styles, can be used for many occasions, and are suitable for all ages.
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