Feature 1Widely 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. 2Applicable: 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. 3Easy 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. 4Tight 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. 5Unique 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:TelescopePhoneAdapterMaterial: PA, GFSize: Approx. 119x67x44.5mm / 4.69x2.64x1.75inEyepiece Clamping Force: 3kg/6.6lbClamping phone width: 66~95(mm)(2.6inch-3.7inch)Phone Clip Depth: Approx. 14mm/0.55inClamping Eyepiece Diameter: Approx. 23 ~ 50 (mm) (0.9inch~2inch)Product Function: Connect Smartphone with Telescope, Astronomical Mirror, Microscope, Bird Watching Scope .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Bracket1 x Instruction Manual1 x Large Gasket (4 Pieces)1 x Small Gasket (Bag)NotePlease allow some error in manual measurement.