'OUBO Brand 4 Holes Al~um~ina Abr~asion Mic~roetcher Sandb~Lasting Sandb~Laster Te~e`th Whitening Sandbl~Aster

Easy to use. Works well

I have used 3 times tops, and is already broken. To much money for something new that stop working after no used at all.

It stop working on the second day!!

It didn't work at all, I didn't try it immediately and now I can't return it.

Stop working after two weeks....a complete waste of money !

Excelente