Foster 500 Sofa. is made by Brand Walter Knoll. Details and photos of Foster 500 Sofa. are displayed above. You can also check other products in Furnishings category. Brand Walter Knoll / Furnishings Furnishings products by Brand Walter Knoll 375 Stool. Foster 502 Armchair. Foster 501 Sofa. Foster 502 Sofa. Jaan Living Server. 375 Chair.