This kit works with many other telescopes that accept 1.25 eyepieces and filters. It features 2 fully coated eyepieces a 15 mm and a 9 mm Kellner. The 15 mm eyepiece gives medium power but a wider field of view, while the 9 mm is high powered but gives narrower field of view. The PowerSeeker Accessory kit also includes #80A blue planetary filter, #25 red planetary filter, moon filter and hard plastic carrying case. Filters are a great enhancement for lunar and planet viewing. They reduce glare and increase contrast, definition and resolution. These colored filters are anti-reflection coated . PowerSeeker Accessory Kit Features: Factory Information: Product # 94306, Accessory Kit, Planetary Filters, Moon Filter - Lowers Amount of Light Reaching Your Eye for Clear View, Fully Coated Kellner Eyepieces, Includes: 15 mm Kellner Eyepiece, 9 mm Kellner Eyepiece, #80A Blue Planetary Filter, #25 Red Planetary Filter, Moon Filter, Microfiber Cleaning Cloth, Plastic, Hard Carrying Case w/ Foam-Lined Interior, Compatible With The Following Models: 21008 21009 21023 21036 21037 21039 21041 21043 21045 21048 21049 21079 21087 22100 22101 22102 22103"