The pattern is not difficult, although it has a lot of different cable stitches. It can be a bit difficult for a beginner, but I have tried to make the instructions as simple and clear as possible. You could make a larger size by using a worsted weight and larger needles. You could also shorten or lengthen the cuffs by adding or subtracting row...

These are fingerless mitt, with a simple 5 stitch cable stitch. You could make them longer or shorter by adding or decreasing rows on the ribbing.