Celestron Deluxe Observing Accessory KitMars, Jupiter, Saturn, the Moon and more, you won't be able to get enough out of this awesome Deluxe Mars Observing Accessory Kit. With the ability to see views that'll blow your mind out of this world, this kit is a must in every budding astronomers telescope bag. 2X Power Doubling Lens The 2x Power Doubling Lens doubles the magnification of any eyepiece that is used with it. The lens goes in between the telescope and the eyepiece you are using. In