One of the best things about the Onnit Steelbell is the ability to slam it on the ground with explosive movements. The Back Lunge Slam engages your entire body in a single, coordinated movement that will have you sweating quick.
Back Lunge Slam Challenge Instructions
The Onnit Steelbell Back Lunge Slam Challenge involves performing as many reps as possible in a minute. Men use 40lbs and women use 20lbs.
Back Lunge Slam Challenge Video
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Find out more about Onnit Steelbells at https://getonn.it/vCypO