Celestron PowerSeeker Accessory KitThe PowerSeeker Accessory Kit from Celestron enhances the functionality of a Celestron telescope. This kit may be used with any telescope that accepts 1. 25" eyepieces and filters. It features 2 fully coated eyepieces; a 15 mm and a 9 mm Kellner. The 15 mm eyepiece will give a medium power but a wider field of view, while the 9 mm is higher power but gives a narrower field of view.