SVBONY Red Laser Collimator for Newtonian Reflector Telescope Alignment 1.25' 7 Bright Levels Triple Cemented Lens with 2" Adapter

It’s unfortunate that this laser collimation has 2 problems:1. The laser beam is not collimated, it traces a circle when I rotate it.2. The diameter of the collimation is slightly smaller than the diameter of the telescope focuser, this size mismatch is enough for the laser collimator to fit slightly differently each time you attach it to the focuser therefore it provides different results each time.Sure you can spend time and fix these defects by collimating and calibrating the laser beam using the screws on the sides and put a layer of tape on the collimator neck to make it fit snugly in the focuser, but when I buy a tool I expect it to perform and function properly right out of the box. I don’t expect to spend additional time and effort to fix the tool to be usable.