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 Keypiece Communication Desk. Jaan Living Sofa. 375 Stool. Fabricius Sofa. Keypiece Conference Table. Aisuu Side Chair.