A bit trick to use, didn't really work for me. [SEP] I tried it, and on first pass, it was a bit tricky to use, and the paste splattered.  It didn't work for me, and  I left it to the professionals in the end. Maybe others will have better luck..  I think that a rotating brush would have worked better for home use.  The rubber cup provided is like the one the dentist uses, but his is more powerful, and this is battery operated. The polish is of good professional quality.