Image Item No. Description By  2719  Technic, Plate 1 x 10 with Toothed Ends Catalog: Parts: Technic, Plate 14  3738  Technic, Plate 2 x 8 with 7 Holes Catalog: Parts: Technic, Plate 2  32125  Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller) Catalog: Parts: Technic, Plate 1  64566  Technic, Plate Rotor 6 Blade with Clip Ends Connected (Water Wheel) - Hollow Studs Catalog: Parts: Technic, Plate 14