what is numbervalue intvalue boolvalue toolvalue and more values?

so i learned from thedevking a tutorial to make leaderstats

but the only problem is what are these values?

numbervalue intvalue boolvalue toolvalue what are they?

Right, so int values can store whole numbers and positive numbers, number values are values that can store all numbers, bool numbers are either true or false I don't understand what do you mean by tool values but basically, values are storage boxes.