I needed a mouse for my three-year-old nephews that didn't have a scroll wheel to interfere with their kiddie computer games. This mouse has turned out to be the perfect option. There have been no issues with installation or use, and I am pleased with the product on every level. I gave it five stars on Amazon.com.
Also, I find the mouse easy to use for adult hands too. Though I did have to initially adopt a few different surfing habits (I typically rely heavily on the scroll wheel), this house hasn't slowed my Internet experience down. More important to me is that I've sat and used the mouse for hours at a time with no strain.
Product Description: CoolBug is a kid-friendly computer mouse for young children. A great way to get children involved into computers without the intimidation. As computers are becoming a way of life the younger the child, the easier it will be to grasp the idea of PCs. Many adults have been caught by surprise and have had to learn to operate a computer at a later age - don't let this happen to a child.
The only thing I think is silly is that they call it "CoolBug" when it is kind of an ugly frog. My nephews could care less.