Image Item No. Description By  4263  Technic, Plate 1 x 4 with Toothed Ends Catalog: Parts: Technic, Plate 7  32124  Technic, Plate 1 x 5 with Smooth Ends, 4 Studs and Center Axle Hole Catalog: Parts: Technic, Plate 11  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 5  3738  Technic, Plate 2 x 8 with 7 Holes Catalog: Parts: Technic, Plate 4  32125  Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Catalog: Parts: Technic, Plate 4  64566  Technic, Plate Rotor 6 Blade with Clip Ends Connected (Water Wheel) - Hollow Studs Catalog: Parts: Technic, Plate 1