i baught this think ok one of my trouble spot as a woman be my arm , well ... its boring , its funky weight and shape to use , the instructor Lindsey creap I no insperation to keep use the video . . now the dog like the use it as a chew toy . i have have WAY BIGGER result with boxing glove and bag work and jump roaping with weight on my arm . i wouldnt recomend this except as a paper weight or chew toy ... plus my guy friend give I crap with there pervert mind its dumb