I ordered this item to help modify some of the demanding Insanity burpies. I am very large in ht and wt. This step is sturdy. It does not move when you jump on it and absorbs all the shock from the jump. It is very long which makes for a great base!!!
I love this thing, its a 4in1 plyo box that allows an athlete to save space and money! I put a full product review on my blog, just click here to read it! http://stuchstrength.com/gym-equipment-reviews/staminax-adjustable-height-plyo-box-review/
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