Specification Brand : Astromania BulletPoint1 : The laser pointer holder is compatible with various sizes; accommodating a maximum diameter of 30mm and a minimum of 5mm BulletPoint2 : The inclusion of a 1/4-inch standard camera thread hole makes it compatible with most telescopes; including Celestron Sky-watcher Vixen and other models BulletPoint3 : Constructed from premium aluminum alloy material instead of plastic and it boasts a sleek black oxide finish on its surface; ensuring both robustness and long life BulletPoint4 : The ease of installation and usage; coupled with the inclusion of a three-point knurled knob for swift and effortless alignment; renders it an optimal choice for avid telescope enthusiasts BulletPoint5 : Multifunctional tool can be transformed into a sophisticated telescope viewfinder; making it an ideal companion for enhancing your stargazing experience with various accessories and taking it to the next level Color : Inside Diameter -30MM EyePieceLensDescription : No Finderscope : Reflex FocusType : Manual Focus IncludedComponents : Adjustable Laser Finder Scope Bracket ItemName : Astromania Aluminum Alloy Adjustable Laser Finder Scope Mounting Bracket with 1/4 Screw- 30mm Inside Diameter (Pair) - for Astronomy Laser Pointer ItemPackageDimensions_Height : 135 millimeters ItemPackageDimensions_Length : 90 millimeters ItemPackageDimensions_Width : 135 millimeters ItemPackageQuantity : 1 ItemTypeKeyword : telescope-finderscopes Manufacturer : Astromania ModelNumber : SKU_AM_AGSRS70 NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : SKU_AM_LFSB ProductDescription : If you are looking for a cool and durable laser for your laser pointer , here it is! This product is made of high quality material. It fits maximum dia. 30mm, minimum 5mm laser pointer, compatible with different types of laser pointer. Easy to install and use, a good choice for you.