Suitable for occasions: watching the rising sun, sunset.Item Name: black solar filterModel Number: OF-12-1.25Filter Caliber Size: 1.25inches / 31.7mmInch Fine Thread: M28x0.6Shape: roundWeight: 9 gNotes:Use this solar filter in the morning and evening. Do not use it especially when the sun is very strong (at noon)!Never look directly at the sun through the telescope with your eyes.You must add a solar filter when watching the sun with a telescope, otherwise it will cause permanent damage to the eyes!Colour: BlackMaterial: Aluminum AlloyPackage Contents:1 * Black solar filterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.