Looking to gain muscle mass over the next couple of months? This high volume workout is perfect for you: http://muscle.ms/SerzMass pic.twitter.com/WebZGdKIKZ

Looking to gain muscle mass over the next couple of months? This high volume workout is perfect for you: http://muscle.ms/SerzMass 

First seen here > https://twitter.com/Muscle_Strength/status/870414729487020035

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