It’s amazing how a single set of dumbbells can completely change your ability to workout specific muscle groups. This routine from trainer Melissa Bender celebrates that fact by using single set of dumbbells as the base of a hardcore and effective arm workout that helps shape and sculpt them. If dumbbells aren’t already part of your at-home arsenal, you can use full soup cans or jugs of milk. Melissa doesn’t focus on just one side of the arms but all around, including your forearms in order to get your arms into fighting form in no time!