[3-Step Installation in 5s] APEXEL telescope phone adapter features a one-piece slide rail and stretch clip design, allowing quick and easy 3-step installation in seconds. Capture clear images with minimal effort. [Widely Compatible] This smartphone monocular adapter includes a soft silicone clip that protects your phone and avoids accidental button presses. Fits most smartphones, including iPhone, Samsung, Google, Huawei, OnePlus, and other models. [Portable Scope Mount] Designed without screws or complicated parts, this lightweight telescope adapter is compact and travel-friendly. Weighs only 0.22 lb and is smaller than an iPhone, ideal for outdoor use. [Sturdy & Stable] Built with a durable metal frame and polymer body, this adapter ensures long-lasting performance. The eyepiece clamp has a non-slip texture and strong spring tension (up to 6.6 lb), providing a secure connection to optical instruments and minimizing misalignment from movement. [Applicable Eyepiece Range] Compatible with eyepieces from 23mm to 50mm (0.9 inch to 2 inch) in diameter. Works with telescopes, binoculars, monoculars, microscopes, night vision devices, and spotting scopes. Includes a soft EVA spacer to prevent scratches and protect your device. Color: Black Material: Plastic Package Contents: 1 x Telescope Phone Adapter Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.