The base of the sight would not fit to my bow so I had to use a previous base that I had to attach the rest of the product to the bow. There's not a lot of instruction on how to assemble and zero in this sight and I had to search online and perfrom trial by error to zero in the sights. So far the sights are pretty rugged and it works pretty well. I would recommend this product to someone that knows how the base will fit in with thier bow.Obviously not a real expensive sight but the quality for the price is good worked well to get my son on target.good fast delivery.easy installation and easy to sight in.great deal for the money for hunting or just shooting.I'm not an elite archer so I don't really care about splitting arrows, i am easily getting 4" groups with this though.If you like multiple pin sights this is a good one with bright pins. There are a few draw backs that might bother some people, yet they are not an issue for me. The pins are not a "standard" size that you can buy easily, yet two of these sights would get you 8 pins, give you spare parts, and still cost less then most archery sights on the market. The pins are a little larger then some people like. The sight housing is plastic, yet it is still sturdy.for the price and cost of shipping this sight is great value.an excellent start in sight equipment i give this 100%.