Bought brand new for $86, my daughter only wore them for two days, could not get the hang of them and gave up. Instead of removable wheels, the Strive by Heelys utilizes the POP by Heelys wheels that pop into the sole of the shoe. So you can walk or roll, the choice is yours, just use the button on the back of the shoe to make your wheels POP! Synthetic upper with padded tongue and collar for optimal comfort and protection.