Image Item No. Description By  bb0278a  Plastic Science & Technology Panel - Circle Large Catalog: Parts: Plastic 20  bb0278b  Plastic Science & Technology Panel - Circle Small Catalog: Parts: Plastic 19  bb0278c  Plastic Science & Technology Panel - Curved Segment Catalog: Parts: Plastic 16  bb0278d  Plastic Science & Technology Panel - Triangle Large Catalog: Parts: Plastic 23  bb0278e  Plastic Science & Technology Panel - Triangle Medium Catalog: Parts: Plastic 22  bb0278f  Plastic Science & Technology Panel - Triangle Small Catalog: Parts: Plastic 19  4500588 (Inv)  Plastic Science & Technology Panels Catalog: Parts: Plastic 163