It's a small piece of metal, about four inches long. At the top is a narrow loop. Below that, it spreads into two flat wings, about three inches across, just right for a kid's fingers. At the bottom is a short neck ending in a square socket.
It looks a little like a key and a little like a wrench. It's both.
For a few decades, kids all over America knew exactly where theirs was, or at least they were supposed to.
Three Clues
- Most kids wore it on a string or a shoelace around their neck.
- It didn't work with sneakers. You needed stiff leather shoes.
- One end tightened, the other end adjusted. Both mattered if you had a younger brother.
What People Usually Guess
A clock key. Good guess. Old wind-up clocks used square keys too. But this one is too big and the wings are wrong.
A key for a sardine can or a tin. The wings throw people off. But there's nothing to roll up.
A bicycle tool. Close. It did adjust something with wheels.
The Answer: It's a Roller Skate Key
This was the key to old metal clamp-on roller skates, the kind that strapped right over your regular shoes. Without it, you couldn't put your skates on.
How It Worked
The old street skates were metal frames with four wheels, a heel cup, and a pair of clamps at the front. A leather strap went around your ankle.
- **Adjust the length.** The skate was made of two sliding pieces held with a nut. The wrench end of the key loosened the nut, you slid the skate to fit your shoe, and tightened it again.
- **Set your shoe in.** Heel in the cup, toe between the clamps.
- **Tighten the clamps.** The square socket fit over the end of a rod under the front wheels. Turning it pulled the clamps in until they gripped the edges of your shoe sole.
- **Buckle the ankle strap**, hang the key back around your neck, and go.
It wasn't a perfect system. If the clamps loosened, the skate could come right off your shoe mid-stride.
Why You Needed Hard Shoes
The clamps needed something firm to grab. Stiff leather school or play shoes had a solid sole edge. Soft canvas sneakers didn't, and the skate would slip.
Who Used It, and When
The four-wheel roller skate goes back to James Plimpton's design in 1863. Not long after, inventors came up with metal clamps that gripped your shoe instead of a strap across the toes.
The Smithsonian's National Museum of American History has a pair of clamp-on skates from 1925, worn by a boy in the Bronx, with the key still attached to the strap.
The heyday of the skate key ran from the 1950s into the 1970s. These skates could be adjusted to fit a growing kid for years, and then handed down to a brother or sister. That made them a favorite with parents.
Why You Don't See Them Anymore
Sneakers became everyday shoes for kids, and they didn't work with clamps. Skates that came already attached to a boot took over, plastic wheels arrived in the 1960s, and in-line skates came along in the 1980s. None of them needed a key.
Still Got One?
Skate keys turn up at flea markets, in junk drawers, and in the bottom of old toy boxes, often still on the original shoelace. Local history museums display them because so many visitors recognize them right away.
Where did you skate as a kid, and did you ever lose your key?
Sources
- "Key, Skate," McLeod County Historical Society (Minnesota) collection
- "Clamp On Roller Skates, 1925," Smithsonian National Museum of American History
- "What Is It?" Benton County Historical Society
- Jim Six, "I've got a brand new pair of roller skates," NJ.com, May 2012
Related Reading
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