The Heavyhands Panaerobic hand weight system is manufactured and sold exclusively by Lion Sports Inc. Lion Sports Inc was founded in 1996. It sells a wide variety of sporting goods products.
This exercise makes good sense in terms of the whole body, providing a training stimulus for the entire musculature, including the all important heart pump muscle. Owner Len Schwartz began putting together a few chapters dealing with the subject of whole body exercise using adjustable, foam-clad, strapped dumbbells and was awarded a USA patent on the idea.
In retrospect, Len thinks that HH may have invented itself. The exerciser's 'physiologic' needs almost etched out the dumbbell's final structure! Nothing was included that didn't belong, so indeed, nearly 3 decades later they're the spittin' image of their original ancestors!