GOSONO Goggles Laser Safety Glasses 190nm to 540nm Laser protective eyewear With Velvet Box

GOSONO Goggles Laser Safety Glasses 190nm to 540nm Laser protective eyewear With Velvet Box

4PCS glass+4 case, Protection Features: All-round absorption. 4 glasses and 4 glasses box,Multiple colors to choose,Size: Approx 14.5 x 5.5 cm / 5.70" x 2.17" The durable structure, the soft plastic is super light, and the single weight is about 18g. It is stress-free and comfortable to wear for a long time. Adjustable frame, the length of the glasses frame can be adjusted to 4 modes (9-11.4cm/3.5-4.4 inch), which can be superimposed on ordinary glasses. Goggles Laser Glasses With Free Velvet Box 190nm to 540nm Laser protective eyewear With Box Goggles Laser Glasses With Free Velvet Box 190nm to 540nm Laser protective eyewear With Box
Visible Light Transmittance: or more 55%.
Protection Wavelength: 190nm - 540nm.
Size: Approx 14.5 x 5.5 cm / 5.70" x 2.17"
Attenuation: (10-6 < N% < 10-4).
Optical Density: > 5.0, (OD +5, OD +6).
The length of temple is adjustable (3.6 - 4.5 inch / 9 - 11.4cm).
Protection Features: All-round absorption.