Compatible with Binocular Monocular Spotting Scope Telescope and Microscope. Get Your Mobile Phone Into Video Camera and Image Capturer in Distant, Tiny World . Explore the nature of the world easily through your screen Compliable with microscope, telescope, binocular, monocular, nightvision spotting scope. Fit eyepiece diameter 35mm-65mm Universal: With super large width range:54-83mm, Fit for iphone 6plus, 6,5s,5, Samsung Note , Sony, Sony Xperia Z and many other brands Main Part Made of Aluminum, Fully metal housing. And phone clamp made of high strength PA Plastic Safe and comfortable -The outface to connect phone and eyepiece are covered by soft material .