The Celestron Observer\'s Accessory Kit enhances the performance of your telescope. This kit 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. Observer\'s Accessory Kit includes: Inside the plastic, foam-lined carry case you\'ll find these accessories: 17 mm Plossl Eyepiece - 1.25\" 6 mm Plossl Eyepiece - 1.25\" 2x Barlow Lens/T-Adapter - 1.25\" #80A Blue Filter - 1.25\" #25 Red Filter - 1.25\" Moon Filter - 1.25\" Microfiber Cleaning Cloth