:max_bytes(150000):strip_icc()/plankchallenge_calendarfinal-8ec36bd10f574493906e4e2225586cf1.jpg "It's a Plank Off! 31 Core Exercises for a Killer Beach Body")
It's a Plank Off! 31 Core Exercises for a Killer Beach Body
:max_bytes(200000):strip_icc()/The-Ultimate-30-Day-Plank-Challenge-for-Your-Strongest-Core-Ever--0b698f248c434591b4e592703c01fb67.jpeg "This 30-Day Plank Challenge Will Strengthen Your Entire Core")
This 30-Day Plank Challenge Will Strengthen Your Entire Core
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