Image Item No. Description By  4262  Technic, Plate 1 x 6 with Toothed Ends Catalog: Parts: Technic, Plate 1  3709b  Technic, Plate 2 x 4 with 3 Holes Catalog: Parts: Technic, Plate 4  32001  Technic, Plate 2 x 6 with 5 Holes Catalog: Parts: Technic, Plate 2  3738  Technic, Plate 2 x 8 with 7 Holes Catalog: Parts: Technic, Plate 305