Want killer arms & back for Halloween? Follow this 30 day challenge.

Upper body strength requires patience, persistence and perseverance. The Back & Arms Challenge helps you create consistency in your approach, activate the body’s adaptive response that helps muscles get stronger and gives you a handy means of tracking your workouts over a 30-day period. Use it as a foundation to build on in your journey to your better future self. 

  https://darebee.com/challenges/back-and-arms-challenge.html