1. Lens material: pure optical glass
2. Frame material: aluminum alloy
3. Size: 1.25 inches (31.7mm)
4. Thread: M28.5 x 0.6mm
5. Single net weight: 10g
6. Delivery list: 1 filter, 1 plastic storage box
7. Color classification: green 5P0053 neutral, blue 5P0033 neutral, red 5P0039 neutral, yellow 5P0032 neutral, orange 5P9954 neutral, pink 5P9956 neutral, purple 5P9955 neutral, black 5P0064 neutral

Note: The black color can only watch the sun rise and sunset, not at night, nor time to watch when the sun is strong, otherwise it may explode if it exceeds 20 seconds. When the sun is strong, you must use the Bard film on the objective lens. Or watch with solar film.