I was going in for shoulder surgery, so would need assistance in opening bottles. I mounted the bottle opener on the wall and tested it out. It worked fine for the first 2 weeks, but now it appears that it is worn out. It no longer grips the cap. So it worked for the first 20 bottles or so. If it had been made with better quality materials this would not have happened. I now have to ask someone else to open bottles for me.