Features: -- Compatible with most phone on the market (Large width range:53-97mm) . -- Universal holder connecting smart phones and telescopes can separately fit all standard tripod . (Not Included .) -- Phone is protected by High density EVA pads it will not damage your phone's screen . -- Adjustable clamping force: The phone clamping part features adjustable locking mechanism with a steel bolt (not a spring) . -- Easy one touch mounting system locks and releases the device with a push . -- Rotary adjustment bracket eyepiece fixed size . -- Compatible with Binocular monocular telescope microscope spotting scope night vision etc . Specifications: Color: Black Fit For: Most of mobile phone (53-97mm width) Fit For: 26-47mm diameter eyepieces Package Included: 1 x Telescope Phone Holder Note: 1 . Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures . 2 . Please allow 1-3cm measuring deviation due to manual measurement .( 1 inch = 2 .54 cm )