This mobile phone adapter makes it easy to capture the beautiful world on the screen. It can be used for optical instruments such as microscope, telescope, binoculars, monocular telescope, night vision binoculars, sight, etc. You can connect your mobile phone to an optical instrument through this adapter. If your mobile device has this function, take photos with the touch screen camera first. If your mobile device has a , please give priority to taking photos with center focus. If the rubber sucker is stained with dust, please rinse it before using it. Name:CM-8L multi- mobile phone bracket Application:the mobile device is connected with a telescope to take pictures. Model:CM-8L Colour:As Shown Material:Plastic+Metal Size:Eyepiece bayonet:inner diameter cm-8l:38.5mm-43.5mm Package Contents: 1 * mobile phone bracket 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.