The Celestron Eyepiece & Filter Kit 1.25″ contains everything necessary to get started in visual astronomy at a fraction of the cost of purchasing the items individually and should be considered with every telescope purchase. Eyepiece and Filter Kit contains: – Five Superior Grade Plossl Eyepieces – 1.25″ – 4-element design with a 52deg AFOV – Superb color resolution, edge sharpness and clarity. All eyepieces are fully multi-coated for maximum contrast and resolution. Supplied are a 6mm, 8mm, 13mm, 17mm and 32mm. – Barlow Lens – 2x 1.25″ – Compliments the Plossl eyepieces in this kit and gives you a total of ten power combinations. High grade glass optics with fully multicoated lenses are used so there is no degradation of image. – Six Coloured Eyepiece (Lunar and Planetary) Filters – 1.25″ – Included are Kodak Wratten Nos 12, 21, 25, 56, 58A, and 80A. Since you have all the eyepieces necessary to study the planets and moon in detail, these filters will greatly enhance your enjoyment of our solar system. – Moon Filter – 1.25″ – A neutral density filter which allows you maximum enjoyment of the moon especially during the brighter phases. – Aluminum Carrying Case – This sturdy and well-built case fits all of the above items in the die-cut foam interior and has room for additional accessories.