The quality is there but the problem is that you don't realize you have them on until you are far from where they belong.<br />They get legs!!<br />I keep 2 dozen Crews SS110  in racks of 5 or more at work stations for the same reason.  Lined up in a rack there is always at least one  ready to protect my eyes.<br />One of those things you can easily loose or misplace and if you need them easy access to one more is really important<br />These are just right for slightly out of range or too small computer print.<br /><br />The first set of three convinced me that two more sets of 3 would be good insurance.  I don't have kids who destroy glass's but I do have a mini Doberman who can open a plastic bottle in seconds or find out what is inside a golf ball is just a few more.  Getting a hold of glass's for the big chomp is a matter of finding them plus one second.<br />This is a fantastic value for your money Down town anywhere the price for just one is $20 and up.