This is a terrible product. Once you close your mouth to create an active contraction the product stays on a “closed position”, it doesn’t spring back so that you can continue to exercise mouth muscles, as you can see on the picture. It is pointless and very cheaply made. Don’t waste your money. Read more
Flimsy not worth the time or the money. Read more
It is a completely non-functional, cheap piece of crap! Read more
It was kind of shaky as you squeeze with your mouth it should be more smooth other wise it does what its suppose Read more
Cheap crap. Returned it. Read more
Producto no funciona pues se queda encajado el Springs y material es muy debil Read more
Difficult to use. Read more
Doesn’t even put pressure on your smile. It just sits there Read more