Telescope accessories bud essentials of the sun watching the sun when using a telescope is not to direct the sun to the sun to see the focus will burn our glasses, not directly watch the sun.This solar filter film is suitable for 60-90mm telescopes to view the sun safely!Friendship Reminder: You cannot watch directly under the sun with your eye, when viewing the sun with a telescope to add a sunscreen, or professional film!Otherwise it will cause eye damage!Warning: Do not use the product if the film is damaged, in case of eye damage.The traditional film (easy to break and damage) has low cost performance. This solar film is coated with PET+ aluminum foil, which is durable and not easy to damage. In addition, it has been certified by (the same material as the lens of the solar observation mirror).Colour:blackMaterial:Plastic + solar filmPackage Contents:1 x Lens CapOnly the above package content, other products are not included.Note: Light reflection 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.