1、Light Purple And Yellow Lens: The light purple lens can reduces glare when looking at the moon. Yellow lens can contrasting strongly with the blue features of Jupiter and Saturn, while enhancing the red and orange features, can be used to increase the contrast of lunar features. 2、Orange And Red Lens: Lens is used to improve the contrast between light and dark when observing space, can penetrate clouds, observe dust storms on Mars, can be used to observe the Jupiter with good effect; Red lens provides strong contrast and enhanced turquoise surface details, useful for Jupiter, Saturn and Mars. Increase the contrast between the bright blue sky during daytime or dusk observations. 3、Light Green: Polar ice caps and yellow dust storms on Mars, also contrast with the increase in red and blue features on Jupiter and the Moon; Useful on the moon, Mars, Jupiter, and Saturn to increase contrast without significantly reducing image brightness. 4、Filters with Threaded: Compatible with any 25 inch telescope and can be used alone or in piles; Easy to install and use, they help filter out unnecessary light and make you look clearer. 5、Excellent Grade Material: Made of optical glass and plastic materials, portable and durable. Easy to install and use, they help filter out unnecessary light and make you look clearer. 6 x Filter1 x Storage Box  Item Type: Telescope FiltersWeight: 57g/2ozMaterial: Optical glass and plasticColor: Yellow, orange, red, light green, blue, light purpleApplicable Interface: 1.25in/ 31.7mmUse: Reduce light (add color)