With so many different types of hair, including long, short, straight, curly or wavy, these double magnetic guards will help guide through the toughest cut. Choosing the right size is also important so you can cut the hair to the length you desire. Having multiple sizes in this system will cover all of those wishes. Not all guards are created equal and don't offer much in the way of utility, while others have limited appeal and installation is hard or doesn't work. StyleCraft Dub Guards have magnets on the backside that will fit securely to most clipper brands and are super easy to install and remove.