The first one: see "Wholesale vibrator cock ring" reputation.
Quality male health products, because of its good results, often recognized relevant authority, and shoddy products, because of their poor quality, not only will not be recognized, will be hit.
The second measure: see "Wholesale vibrator cock ring" packaging.
High-quality health care in general package of sophisticated men, the packaging will be marked with approval number, manufacturer, telephone consultation, and clear text, vivid colors. And shoddy products are mostly non-approval number, no manufacturer, no consultation call the "three noes" products, in order to pursue profits, they are often cut corners on the packaging production, shoddy.
The third measure: see "Wholesale vibrator cock ring" security.
High quality male health products, in order to prevent counterfeit and shoddy products, generally have security signs, the product itself is shoddy imitation of quality products, simply do not have security signs.
Fourth trick: Look advertising.