Features 1.Widely Compatible: The telescope phone adapter is suitable for almost all smartphones on the market, such as for iPhone, for Samsung, for Google, for Huawei, for OnePlus, etc. 2.Applicable: The smartphone telescope adapter is suitable for eyepieces with a diameter of 23mm~50mm (0.9inch~2inch), and can be used for telescopes, binoculars, monoculars, microscopes, night vision devices and sights. 3.Easy to Secure and Install: The smartphone photography adapter offers a revolutionary way of fixing. Integrated slide rail and tension clip design for 3 step installation in 5 seconds. 4.Tight Connection: The telescope phone adapter consists of a durable metal frame and a polymer body. The glasses clip has a non slip thread and a spring force of up to 6.6 pounds for a tight attachment to optical instruments. 5.Unique Design: The smartphone telescope adapter adopts a soft silicone clip design, which does not damage the mobile phone and does not press the buttons. Soft EVA gaskets are also included to guard your device from scratches or damage. specificationItem Type: Telescope Phone Adapter_x000D_ Material: PA, GF_x000D_ Size: Approx. 119x67x44.5mm / 4.69x2.64x1.75in_x000D_ Eyepiece Clamping Force: 3kg/6.6lb_x000D_ Clamping phone width: 66~95(mm)(2.6inch-3.7inch)_x000D_ Phone Clip Depth: Approx. 14mm/0.55in_x000D_ Clamping Eyepiece Diameter: Approx. 23 ~ 50 (mm) (0.9inch~2inch)_x000D_ Product Function: Connect Smartphone with Telescope, Astronomical Mirror, Microscope, Bird Watching Scope PackageList 1 x Bracket 1 x Instruction Manual 1 x Large Gasket (4 Pieces) 1 x Small Gasket (Bag) NotePlease allow some error in manual measurement.