Une étoile car la qualité fabrication du produit est de très basse qualité. The mics sound is adequate, but its hardly top quality. So I was able to pre-drill into the stud at an angle for the pedal mount. They were spot on! So I had a new one sent and they still sent 4 bolts. All in all, Im a happy user. Too bad they cant make something like this here at a similar price point . I cannot believe I spent $100 on this and received a crooked rug. I can?t recommend them as therapeutic for plantar fasciitis, but maybe a stop gap? They?d be a bargain at half the price and would double the stars. No brand label on them.