Image Item No. Description By  32124  Technic, Plate 1 x 5 with Smooth Ends, 4 Studs and Center Axle Hole Catalog: Parts: Technic, Plate 1  3709b  Technic, Plate 2 x 4 with 3 Holes Catalog: Parts: Technic, Plate 4  3738  Technic, Plate 2 x 8 with 7 Holes Catalog: Parts: Technic, Plate 1