Need help identifying a grip

Who used to make that metal hook looking thing that was a heal rest for the hand. It was a grip accessory. I’ve seen them on 1911’s in the past. Does anyone know what I’m talking about?

Doug Hall in Ohio

https://www.dheco.com/products.html

Thanks. Those grip attachments aren’t on his site. I’ll
Have to give him a shout and talk to him about it.

He calls it a “grip hook”.