Description: Universal Compatibility: This phone adapter is designed to work with a wide range of optical devices, including monoculars, binoculars, telescopes, spotting scope, and . ensures it can be used with various equipment for diverse applicationsAdjustable Fit: The mount accommodates eyepiece diameters from 2.5cm/0.98inch to 4.5cm/1.77inch and can securely hold phones with widths ranging from 5.5cm/2.17inch to 8.9cm/3.50inch. This flexibility makes it suitable for different devices and phone modelsAnti Slip: Featuring an upgraded clamping design with anti slip grip, this telescope phone adapter firmly holds your phone in place during usePortable Design: With its lightweight and simple structure, this Cellphone Clamp is easy to carry around, making it for outdoor activities where portability is essentialMaterial: The Phone Adapter Mount is made of pp, solid and sturdy. With smooth and soft contact surfaces, no need worry about your phone is scratched or damaged Size Chart: accommodates diameters : 2.5-4.5cm/0.98inch-1.77inchhold phones widths : 5.5-8.9cm/2.17inch-3.50inch Package Includes: 1 Phone Adapter Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful online shopping!