FOR SALE : .".Run faster."...".Run up to 9 feet in one step."...."Jump up to 6 feet high"......I paid $ 300 plus for these new....And I was going to ask $125 for them because thats what pre-used ones go for online......But now, they require new straps.....Thus the $35 price gives you room and more to purchase the straps and install them yourself......I wish i had found this deal , before paying over $300 !.......Been used very little........We wanted to encourage my son to get stronger and healthier at the time , because using these is quite the workout......but , he was unable to use them much ......A few times he used them at parks and gatherings and every time , drew crowds!......A large size means they will support heavier weight......Before and after 250 pounds......Nothing to do with foot size.....Leg height is easily adjusted......We would meet in a public place , at your convenience......So much fun!..........PLEASE LEAVE MESSAGE @ # click for number....Emails work too........Check out my other ads.......THANK YOU