For the price (13.50 + free shipping), I get exactly what I was looking for, a wobbly, poorly processed red dot with which one can get a taste in the world of optical sighting aids. I have a visor for my crossbow ordered because I did not want to spend so much money for a top visor because I did not know what it is to be in the future, Red Dot or Scope. Convinced I was from the high accuracy of the part. Can once shot one at 30 meters with a 150lbs Crossbow shooting hole in hole. After each assembly, however, must be adjusted.