This 15-Minute Arms of Steel Workout Will Build Serious Upper-Body Strength

Get ready to build arms of steel with this 15-minute workout. All you need is a set of medium free weights, and we'll help you strengthen and sculpt your biceps and triceps. Don't worry; we included a few challenging bodyweight exercises, too — think planks, push-ups, and mountain climbers. Why not work your core along with your arms? Press play and get ready for a quick and efficient upper-body burn!