As far as I can recall, Inchworm came out around '76. I didn't have an Inchworm, but my cousins did. I tried it once, but it was never really my thing; I was into my 1974 Huffy Pro Thunder bicycle. Apparantly, it wasn't really their thing either because it ended up in their barn in a pile with all the other stuff they had that they didn't use. Still, I think it was a pretty popular toy back in the day. Alot of kids had them. When I was doing the image search for the above pics, I noticed that Inchworm was re-issued. I wonder if it ever caught on with today's kids the way it did back in the day.