Celestron 94308 Observers Accessory Kit (Black) This Celestron eight-piece accessory kit enhances the performance of your telescope. Includes two high-quality 1.25" Plossl eyepieces, a 2X Barlow lens that can be used visually or photographically, three eyepiece filters, a cleaning cloth, and a case. With two extra eyepieces and a Barlow lens, you'll have four different magnifications to choose from. A Moon filter helps to dim the bright light from the Moon, making it more comfortable to view so you can see more detail! The two color filters (Red & Blue) highlight features on Mars, Jupiter, and Saturn. A hard plastic carry case keeps everything safe in the foam-lined interior.