Don't really know what they call these I know I have seen them on skidsteer"s to keep bucket material from falling back when rolled back. I know my FEL will not handle the same load as a skidsteer so that will be something I will have to watch but snow will be what I use it for. So I thought I would try to make one. I have a great envy and appreciation for welders because I'm not!! Anyway it was 60F here in central Illinois and I spent the afternoon slapping this together and hope it will hold when and if it snows.