Tone vs Mass
What is the difference between the two? Well tone shapes and defines the body to look lean. Mass creates more bulk and size to appear more muscular. In order to achieve these results, the way you train is going to be a factor.
Lets begin with tone, to achieve these results, you must use lighter weights and increase your reps.
To obtain mass, you need to use heavy weights and lesser reps.
Remember everyone, the result of the way you look will be determined by the way you train.