Keeping fish hook earrings secured

I create dozens of earrings a week.  One thing I have found is the earring findings that I purchase never have anything to secure them.  I know that customers like it when I go the extra mile.  I am ordering these safety backs to go with all of the fish hook earrings that I sell.
These are an awesome deal.  Only 1.49 for 144.

There is also the style below for 2.18 for 144.