KNBC - High heels and platforms may seem like a great idea before you hit the dance floor.
But after standing or dancing for a while, you may want to rethink that.
Enter a new idea seen at the "Colony Night Club" in Los Angeles, California.
It's a vending machine that sells emergency flat shoes.
And they are catching on.
They're in several cities now.
They're called "Rolla Soles" and cost about $20.
The ready-to-wear Rolla Soles come in different colors and patterns so club goers can be trendy without the pain.