Item arrived it a timely manner and the product is very versatile.
Perfect bike mirror!
For bike mirror: I can see perfectly behind me. The mirror width gives a super wide view. I can safely change lanes, cross streets and can see who is coming up behind me. I see what's behind at a glance all the time. Don't even bother looking at others.
For 17L bag: I can fit about 2 bags of groceries in it. I also use it as my lunch box. I does not keep things hot/cold but it doesn't promise that. I am very happy with the service, price (~1/2 of a simular one at my local bike store), it's many functions and it's durability.
For phone mount: This was exactly what I expected. I mounted this on the handle bar of my bike. This makes it perfect.