This is an excellent pump for the MAC studio fix fluid and it's reusable, you can turn it to close off the pump, so it won't spill whilst travelling. I do think these should be free as most high end foundations come with a pump. But I'll give 5 stars because I'm rating the product and I have never had any issues with it.
Does just what it supposed too! Fits perfectly for ur MAC foundation and dispenses the right amounts. So much better than fighting with ur bottle and have it blob out. Should just come with the foundation but I guess they need a little more out of u lol!
Helps me keep the intended amount for my face and keeps the bottle rim from getting all gooped up and prevents drying out of the product which makes it last longer