Gosky Smartphone Capturer Phone Android Windows Smartphones - Compatible Binoculars Monocular Spotting Scopes Telescopes - Diameter from 38mm-50mm Use with binocular, monocular, nightvision spotting scope etc. Couples your phone to an eyepieces for high-magnification, Allows you to take high-resolution snapshots of the moon, planets, constellations, and even some bright deep-space objects Connect your phone to 38mm-50mm diameter of a monocular, binocular, microscope or a spotting scope. Record the distant world around you. Ideal for bird watching, watching the nature and beautiful scenery. Made of Aluminum. The outface to connect phone and eyepiece are covered by soft material . Keep your device from scuffing Now we have added another cell phone mount part in every package. This can be another useful clamp part of this item.