Feature: 1. This set contains 6 different color filters, each with its own function, can meet your different needs. 2. The filter is threaded and compatible with any 1.25 inch telescope and can be used individually or in stacks. 3. Easy to install and use, they help filter out unnecessary light and make you look clearer. 4. Made of high quality materials, portable and durable. 5. With portable shock proof storage box, easy to transport filter. 6. Mond & Skyglow: reduce glare when viewing the moon. 7. 12# yellow: contrasts strongly with the blue features of Jupiter and Saturn, while accentuating the red and orange features. Can be used to increase the contrast of lunar characteristics. 8. 21# orange: used to improve the contrast of light and dark when observing space, can penetrate clouds, can observe dust storms on Mars, can be used to observe the great red spot of Jupiter works well. 9. 23A# red: strong contrast and enhanced blue‑green surface detail. Useful for Jupiter, Saturn and Mars. Increase the contrast between mercury and bright blue sky during daytime or dusk observations. 10. 56 # light green: Mars, polar ice cap and yellow dust storms also contrast with an increase in red and blue features on Jupiter and the moon. 11. 82A # blue: useful on the moon, Mars, Jupiter and Saturn to increase contrast without significantly reducing the brightness of the image. Specification: Condition: Brand New Item Type: Telescope Filter Material: Aluminum alloy + optical glass Color: Yellow + orange + red + light green + blue + light purple Model: 12#+21#+23A#+56#+82A#+Mond & Skyglow Applicable interface: 1.25 inch /31.7mm Purpose: reduce light (add color) Package List: 1 x Storage Box6 x Filter