well i got me a weighted jump rope ,i was itching to try it, my regilar one i could do a good 8 minutes on it non stop ,and that was a really decent cardio scession, so i tried my new one, GAG!!! after 2 minutes i felt like barfing! I felt like i was back in boot camp! a man,did i sleep that night after doing 4 2 min scessions!Cutie Thanks I had no idea there were weighted ones out there!