Safety Sport Mirror

Since there are no clear instruction or pictures let me tell you. To put the mirror on glasses simply push it onto the earpiece from the back of your glasses and slide forward. It is easier to do if the rubber piece is on the inside where my hinge of my glasses is. When I first put it on ,I was in my garage and thought the width angle in degrees, of the view in the mirror was too small, when I went to my driveway, which is 18 feet wide 100 feet long I could see at least 36 feet wide holding my head in one position, wider if you are looking at things further than 100 ft away. If I turn my head 90 degrees left and 90 degrees right, I can see a 225 degree view behind me (90degrees left and 135 degrees to the right, my mirror is mounted on the right temple of my glasses). I set it up so I look thru my prescription glasses thru the mirror, The view is crystal clear. They gave me 2 mirrors a 3/4" and a 1" .I easily pulled off the 3/4 and put on the 1" for a wider view. I have 3 bikes so getting 3 mirrors is not worth it .This is a better option.

Great product! Not 5 stars only because of the price and the shipment method.

This cycling mirror is amazing! So much so that I ordered another as a back up.

good product

I had to wait to ride my bike befor writing my review on this mirror. It's great. I mounted it on my sunglasses. The clear view was impressive. Love the mirror. Going to get one for my dad.

Works like a charm, does everything I expected