SOLOMARK Cell Phone Photography Adapter-Compatible Telescope Spotting Scope Binoculars MonocularFit Almost All Brands Smartphones APPLICABLE SIZEFor optics with eyepiece outer diameter(24mm-47mm). Applicable to smartphone which width is between (55-102mm).10mm light hole is easily to align with your cell phone camera and Shields stray light, increase image contrast.Please make sure that the dimension of the device is in this range. EXCELLENT FEEL:Large diameter locking knob is easy and comfortable to lock the eyepiece,Soft material to protect your phone from three directions and Screw locks mobile phone firmly and stably. VERY SUITABLE:Perfect for Binoculars,Monocular,Spotting scope,Telescope,Suitable for almost all brands of smartphone on the marketwith or without a case from small to large. RAPID IMAGE FORMATION:The centre of phone camera and the optics can automatically be aligned,Quick Alignment Version and Super easy to us. Align the camera and optics in few seconds. SHARE:Capture and share! Take a snapshot or video of the view and share your beautiful moments with your texts, social media, emails, to your friends and family!