what r the tubes they put in the candela gentlelas

I have seen the hair removalist put some small tubes on or in the candela gentlelase machine. Does anyone know what these are?

Also, I had a few freckles removed by laser, then she changed or put in a new tube and did the hair removal. I am just wondering if this is the reason they charged me so much money just to have a few freckles removed (about 3 minutes), then charged me the same amount again for the hair removal (about 15 minutes)

It’s a different part of the machine that does other types of cosmetic treatments. So they simply switched back to hair removal for the hair removal purposes. They’re different treatments.

but what are these tubes actually? I have noticed that even just getting hair removal done they always put a new tube in before they start.