Comfortable Headband design distributes weight and lessons pressure that can cause discomfort and headaches. Ultra-wide field of view without distortion keeps your eyes from getting tired. Galilean Optics system offers extra wide field of view with clear vision throughout.
Unique optical coating reduces reflection and improves image clarity. Other viewing distances available, including custom distances, see description for details.
Material of lens-barrel: plastic and optic glass. Box size: 26.523.516.5cm. If you have any query or dissatisfaction, please. Wish you have a nice day! This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Dental Supplies\Dental Face Shields, Head Lights & Loupes".The seller is "dentex2019" and is located in this country: CN. This item can be shipped worldwide.