Compatibility All PhonesDesigned for iPhone 13 Pro Max/13 Pro/13/13 Mini/12 Series. Moreover, come with 2 additional metal rings, which can compatible be with non-MagSafe cases and other brands of cell phones, just stick the metal rings on the center of your phone or phone case. Dual ScreenThis cellphone holder is specially designed for a laptop or desktop monitor is convenient to check messages, enjoys a dual-screen, and improves office efficiency. Even if the phone is in silent mode, you will not miss any important information. Easy to UseSimply tear off the protective tape on the mounting base, stick it to the back of the laptop monitor, and then rotate the arm to unfold the magnetic mount. The built-in strong magnet can firmly adsorb the phone, stable and not loose. Light and SlimDouble display side clamp are made of high-quality lightweight aluminum alloy material, small volume, can be folded in a portable thin size, save space, are easy to carry anywhere, is the ideal choice for travel, analysis, business travel. What You Get1 x Laptop side expansion bracket phone holder, 2 x Metal rings. If you have any issues with our product, you can contact us directly, and we will be happy to assist you.