There are several exercises that tone without the bulk if you use a lighter weight. Examples of muscle-toning exercises for your arms include dumbbell curls, hammer curls, overhead triceps extensions, ...

After years of training, I finally broke through a plateau and added half an inch to my arms in just 30 days. This video ...

If you want to tone your arms without the bodybuilder look, high-repetition, low-weight resistance exercises are key. Here are some exercises to try.

The rate of muscle gain is a little different for every body. But in general, an average adult gains 3 pounds of muscle in two months of strength training.