I use them for certain clients who want a roller applicator for a sports gel.
This bottle is a great size for a deodorant formulation, as long as it’s not too watery. It’s well constructed and I think it will last a long time. This was my first time purchasing it so I had to figure out by myself how to assemble it but it’s very obvious to be honest. I haven’t tried yet but I’m hoping that this bottle can be disassembled and reassembled for refilling - it would be nice if it came with simple instructions for that.
This is what we found on google: Turn the roll-on ball upside-down so that you are looking through the bottom of the plastic base. Push the underside of the roll-on ball on a hard, flat surface such as a table until it pops out of the base. If this doesn't work, press the underside of the ball with the blunt end of a ballpoint pen until it pops out. Let us know if it works?