[3-Step Installation in 5 Seconds] APEXEL telescope phone adapter features a streamlined fixing method. The integrated slide rail and stretch clip design enables quick, three-step installation in just 5 seconds for effortless use. [Widely Compatible] This smartphone monocular adapter uses a soft silicone clip that secures your device without causing damage or interfering with buttons. It fits most smartphones on the market, including models from iPhone, Samsung, Google, Huawei, and OnePlus. [Portable Scope Mount] Unlike traditional adapters, this design eliminates bulky screws and unnecessary components. It is lightweight at 0.22 lb and compact—smaller than an iPhone—making it ideal for outdoor photography. [Sturdy & Stable] Constructed with a durable metal frame and polymer body, this astronomical telescope adapter includes an eyepiece clamp with non-slip threading. Its spring force reaches up to 6.6 lb, ensuring a secure connection with optical instruments and minimizing jitter-related recalibration. [Applicable Eyepiece Range] Fits eyepieces with diameters ranging from 23 mm to 50 mm (0.9 inch to 2 inches). Compatible with telescopes, binoculars, monoculars, microscopes, night vision devices, and spotting scopes. Includes a soft EVA spacer to help prevent scratches. Color: Black Material: Plastic Package Contents: 1 x Telescope Phone Adapter Note: Lighting conditions and display settings may cause slight color variation between the image and the actual product. Measurement tolerance is ±1–3 cm.