This is an excellent low-cost monocular scope. I keep it in the cell phone pocket on the strap of my EDC sling bag. It's great for reading distant signs, looking in crowds from above, magnifying closer objects or just for looking. The rubberized exterior protects it from scratches and dings and will probably keep it from breaking if dropped from eye-level height, though I haven't dropped it yet; I use the included wrist strap. Overall, for $15, this is a no-brainer for anyone for any reason. I recommend it, and would buy it again.
Pros: Good optics, rubberized, small
Cons: For the money, none
This review was written in the old system and had content requirements that are different than reviews written today.