【No Color Difference】The multilayer coated optical lens provides high-quality observation without additional chromatic aberration, making the image clearer and clearer. 【Long Lens Life】This Barlow lens adopts aluminum alloy body, black anodized surface, precision processing, stable and for long-term use. 【Observation Comfort】This Barlow lens provides a wider magnification without magnifying the hole in the eyepiece, and maintains a comfortable observation in a wide range. 【Multiple Magnification, Clearer】This astronomical telescope lens uses a 3X 1.25-inch interface magnification, which can increase the magnification of any 1.25-inch eyepiece and provide a comfortable viewing experience. It allows you to observe the of the moon and other planets more closely and in more detail. 【Easy to Use】Just insert the eyepiece into the Barlow scope, and then insert the Barlow scope into the scope.