You can use a separate button to adjust the lens back and forth to obtain the best focal length, while adjusting the lens left and right to obtain the best interpupillary distance. ABS material: small size, lightweight, easy to carry. These glasses use high-definition resin optical lenses, which are perfect for your face. Adjustable elastic band: can disperse some of the pressure on the bridge of the nose. Super facial skin-like protein heat dissipation skin protection, comfortable design. Inter