This filter allows you to view bright celestial objects that are too intense to observe comfortably through a telescope without filtration—you can see enhanced details. Includes eight color filters (green, red, yellow, blue, etc.) optimized for different bright objects. For best results, select a filter whose color is complementary to the object being observed—e.g., use a blue filter for Jupiter or a red filter for Mars. Fits all standard 1.25-inch telescope eyepieces and T-adapters; features internal threading. Lens material: optical glass—provides clear, high-contrast imaging. Size: 1.25 inches (31.5 mm). Screw thread: M28 × 0.6 mm. Warning: This filter is NOT a solar filter and must NEVER be used for direct solar observation. Doing so is extremely dangerous and may cause permanent eye damage. This filter is intended only for viewing atmospheric phenomena such as sunrise/sunset clouds—not the Sun itself. For safe solar observation, always use a certified solar filter (e.g., Mylar or Baader film) designed specifically for that purpose. Color: Black. Material: Aluminum alloy. Package includes: 8 × 1.25-inch telescope filters. Other accessories shown are not included. Note: Screen settings and lighting conditions may cause slight color variation between product images and the actual item. Dimensional tolerance: ±1–3 mm.