[Universal Phone Adapter] The phone adapter is designed to connect smartphones to binoculars, monocular telescopes, microscopes, spotting scopes, and astronomical telescopes. [Versatile with Precise Focus] The telescope phone adapter fits any eyepiece with an outer diameter of 23mm50mm and supports eyepieces with or without lens covers. Easily switch between portrait and landscape mode. [Compatible with Most Smartphones] With a stretchable width range of 66mm95mm, the telescope phone clip is compatible with most smartphones on the market. For phones with multiple camera lenses, align the clamp with the primary camera lens. [Compact and Portable] Weighing only 102g, the microscope phone mount can be held with one hand and is easy to carry outdoors. The curved design on both sides of the phone clamp allows for optimal fit and alignment. [Easy to Install and Anti-loosening] Two-step installation for quick and easy setup and removal. One-piece structure with multiple anti-loosening features for stable and reliable performance. Specifications: Eyepiece clamping force: approximately 3kg Phone width range: 66mm to 95mm Phone depth range: 14mm Eyepiece diameter range: 23mm to 50mm Net weight: 102g / 3.6oz Material: ABS Color: Black Package Contents: 1 x Mobile eyepiece connector Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 13cm.