Does anyone remember what this toy was called?

One of my children just received a toy which is a miniature version of a toy I remember from my childhood in the late 60's and early 70's. It had a handle, from which two parallel bars projected. The bars finally curved, and then joined at the ends, and there was disk that spun and rode up and down the bars. I just can't remember what it was called. Does anyone remember? Update: It was called a Whee-lo. Here is a link to a better picture of it than my crude drawing. Thanks to those who commented or sent e-mails.