Memories - Old School Skating

I had a couple of pairs of these as a young girl.  You could make them fit your shoes, by loosening the bolt with a key, and stepping in and making sure your shoe fit just right, then tightening it back up again.  We didn't have much cement at our house, and the road asphalt was much to rough.  Seems to me I can remember skating on the cement floor of the basement though.  I didn't put them to much use though, seems like they were more trouble (getting in to) than they were worth.