SVBONY SV216 3X Barlow Lens offers sharp, bright images with multi-coated elements and edge-blackened lenses to reduce light scatter. It controls aberrations for a flatter view and maintains eye relief, ideal for eyeglass wearers. SV216 3X Barlow Lens transforms your telescope into a high-powered explorer, suitable for planetary observation, reveals intricate cloud bands on Jupiter, rings of Saturn, cratered terrain of the Moon in crisp, turning every stargazing session into a profound celestial encounter. SVBONY SV131 1.25" Plossl 32mm Eyepiece uses premium optics that are fully multi-coated for crisp images. The folding eyecup lets you view with or without glasses, works well for views of the moon, planets, deep-sky objects and terrestrial observations. It's a great birthday christmas gift. 1.25" Plossl eyepiece is suitable for any 1.25" telescope barlow lens and filter;also supports the installation of other 1.25 inches accessories.Thread size is M28.5*0.6mm,can supports standard 1.25-inch filter adapter installation.