Great product. I am able to control how much or hot little I use. Keeps the product longer.
Something nice of the company to offer its customer's since Mack uses the restrictor tops, which I personally prefer, some people may want the option to change it. I just think they come in handy for other products.
They do their job they work well that's about it
These babies are amazing! The droppers to rule all others. Bring it on Wolverine. I can totally take you with these!
I know it only a dollar. but a few company offer options. so that you would not have to pay a dollar.