About this Product
Here is an improved 4x twist-in shelf pin. You should try this one before going for the more economical 8x available in my shapeways store.
I don't know about the brand or any original source for them. They are unique to a kitchen shelf brand installed in the 80's.
0.689 w x 0.472 d x 2.126 h
1.75 w x 1.2 d x 5.4 h