The Celestron& accessory kit with a case for telescopes includes 5 superior-grade Plossl eyepieces, a Barlow lens, 6 colored eyepiece filters, a moon filter, and an aluminum carrying case that fits it all in a die-cut foam interior and has room for additional accessories. The Plossl eyepieces offer superb color, resolution, edge sharpness and clarity and they are complimentsed by the Barlow lens to give you a total of ten power combinations.