Foster 502 Sofa. is made by Brand Walter Knoll. Details and photos of Foster 502 Sofa. are displayed above. You can also check other products in Furnishings category. Brand Walter Knoll / Furnishings Furnishings products by Brand Walter Knoll Isanka Stool. Modern Icons: Fabricius Armchair. Andoo Chair. Yuuto Side Table. Foster 502 Armchair. Oki Side Table.