[Universal Phone Adapter]The phone adapter is specially designed for connect smartphone to binoculars, monocular telescopes,microscopes, spotting scopes, astronomical telescope.[Versatile with Precise Focus]The telescope phone adapter fits any eyepiece with outer diameter of 23mm-50mm and supports eyepieces with or Without lens covers. Easy switch between portrait and landscape mode.[Compatible with Most Smartphones]With 66mm-95mm stretchable width range, the telescope phone clip is compatible with most smartphones on the market. For phones with multiple camera lenses, please the clamp with primary camera lens.[Compact and Portable]Only weighs 102g, the microscope phone mount can be held with single hand. Easy to carry outdoors. The curved design on both sides of phone clamp makes it easy to reach optimal size or diameter.[Easy to Install and Anti-loosening]2-step installation, quick and easy to install and remove. One-piece structure with multiple anti-loosening design, stable and reliable. : Eyepiece clamping power: about 3kg Phone width range: 66mm to 95mm Phone depth range: 14mm Eyepiece diameter range:23mm to 50mm Net Weight: 102g/ 3.6oz Material: abs colour: black Package Contents: 1 x Mobile eyepiece connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.