Feature: 1. Wide Compatibility: Compatible with for SkyWatcher for Omni150 and other 150mm aperture telescopes, this solar filter is essential for safely observing the sun and sunspots without damaging your eyes. 2. Neutral White Sun: With this filter, the sun will appear as a neutral and pleasant white color. Use this filter with your telescope to safely observe sunspots, solar eclipses, and planetary transits. 3. 150 Solar Film: The yellow tint enhances the solar observation experience, while the thick design ensures high safety factor. Safely observe the sun and protect your eyes. 4. Safe and Durable: Made with excellent materials, this solar filter is sturdy, durable, and resistant to damage. It is also easy to store and transport. 5. Enhance Observation: The solar filter allows for enhanced observation of the sun, enabling you to explore its features and phenomena with greater accuracy and detail. Specification: Item Type: Solar filter Material: ABS, composite film Weight: Approx. 142g / 5oz Inner Diameter: 135mm / 5.3in Outer Diameter: 170mm / 6.7in Fitment: Fit for SkyWatcher Omni150 and other 150mm aperture telescope. Package List: 1 x Solar Filter