Sun 22 Oct, 2017 06:41 am
I'm just interested in that. Question is enough described on top I think.
I think it's Krabbelhilfe in German.
Krabbelhilfe seems to translate literally as "crawling aid" and seems to apply to different products - knee and elbow pads, crawling boards...
Krabblehilfe are baby knee pads with traction dots. That doesn't really match your description in the title.