1. Rotating Horizontal Button: 55 mm–98 mm Width for Mobile Phone. 2. Universal Cell Phone Adapter Mount: Compatible with Binoculars, Monoculars, Spotting Scopes, Telescopes, and Microscopes. 3. Wide Compatibility: Fits most smartphones on the market, with or without a case, from small to large sizes. 4. Durable Construction: Soft padding protects your phone from three sides; screw lock secures the phone firmly and stably. 5. Protective Contact Surfaces: Contact areas are lined with soft material to prevent scratches and damage; enables use of your smartphone as a video camera or image capture device with optical instruments. : 1. Use your mobile phone to capture images and videos of celestial objects such as the Moon, Jupiter, and Mars; explore the fascinating details of the microscopic and astronomical world. 2. Connect a wide range of optical devices to your smartphone and use built-in camera apps to capture high-quality photos and videos. Type: Monocular Model Number: Binoculars Telescope Suitable For: Binoculars, Smartphones Color: Black Material: Plastic Package Contents: 1 x Binoculars Bracket Note: Light conditions and display settings may cause slight color variation between the product image and the actual item. Measurement tolerance: ±1–3 cm.