Please read this. It can change your life with a multitool.
A Swiss Army Knife isn't really a knife or an army knife. It's really like a multitool with tools such as blades, can openers, screwdrivers, rules, saws, scissors, corks, even pendrives and more.
Swiss Army knife are necessary to cut things for example: in Ecuador, my mom asked me for a pair of scissors to cut a bag then I gave her my Swiss Army to open it. Then I was trying to cut a stick so I took the blade of my knife and cut it.
A Swiss Army Knife can also measure things. For example, I wanted to measure my acer (a mini laptop) and I took my Swiss Army Knife and aha! 8 inches. How easy!.
This tool is also portable. You can carry it in your belt or purse. Or anywhere you go. It is about 5 inches long and 3 inches wide. How useful and small.
As you can see, a Swiss Army Knife is so useful and little. Little ones cost less than $30 while modern ones cost a maximun of $130. You can even buy a non sharpened one specially made for kids. So buy one and have a useful tool.!