PRODUCT TITLE\n\nSky Watcher 7-21mm Zoom Eyepiece 1.25 inch 20586\n\nPRODUCT DESCRIPTION\n\nSky Watcher 7-21mm Zoom Eyepiece 1.25 inch allows you may switch focal lengths without having to switch out other eyepieces. Filter threading on the 1.25\"" barrel allows it to fit standard 1.25\"" filters and comes with 12-months warranty.\n \nSky Watcher 7-21mm Zoom Eyepiece 1.25 inch allows you may switch focal lengths without having to switch out other eyepieces. Filter threading on the 1.25\"" barrel allows it to fit standard 1.25\"" filters.\nWith a fully adjustable range of 7mm to 21mm focal lengths, this 1.25-inch zoom eyepiece is incredibly affordable and can be used for low power sweeping up to planetary magnification on the majority of telescopes. The Sky Watcher 7-21mm Zoom Eyepiece 1.25-inch has a rubber twist grip and a soft rubber eye cup, is incredibly useful and is perfect for travelling or when you just want to carry one all-purpose eyepiece.\nThreaded for standard 1.25\"" e;