Product Features： This product can be worn over the glasses (OTG). It can effectively block liquid splash, particles and fine dust entering eye area. The ventilations on frame can be open by pulling up and closed by pressing down. The lens is resistant to impact and UV ageing, and its surface has anti fog coating to prevent fogging. The elastic headband can be adjusted according to individual
Quality Standards：GB32166.1-2016,ANSI Z87.1, EN 166:2001
Instructions for Use ：Wear over eyes.
Guarantee Period：3 years. Please use before expiry date