Telescope Finding Scope Mounting Ring Accessories for Astronomical Diameter 50mm

[easy to install]telescope star finding adapter,adopting bold m6 screws/three locking screws with protective heads to prevent scratches during fixation [feature]the width of the guide ring has been widened by 14mm,resulting in more and more stable contact surfaces [durable material]telescope star finding ring is made of metal,sturdy structure,smooth surface and wear resistant [portable]the guide ring is small in size and easy to carry.it can be put in a backpack or pocket [anti scratch design]the guide ring has smooth surface,which makes it not easy to leave any mark after scratching