Image Item No. Description  4527  Technic, Panel Curved #52 3 x 13 Tapered Left Catalog: Parts: Technic, Panel  5426  Technic, Panel Curved #53 3 x 13 Tapered Right Catalog: Parts: Technic, Panel  4500  Technic, Panel Inverted 7 x 3 with 2 Pin Holes through Panel Surface Catalog: Parts: Technic, Panel