Image Item No. Description  77850  Plate, Round 1 x 3 with Open Studs Catalog: Parts: Plate, Round  40145  Plate, Round 2 x 2 Thin with Rotation Stem Catalog: Parts: Plate, Round  50407  Plate, Round 2 x 2 Thin with Rotation Stem and Screw Catalog: Parts: Plate, Round  40145c01 (Inv)  Plate, Round 2 x 2 Thin with Rotation Stem with Black Tire 14mm D. x 4mm Smooth Small Single (40145 / 59895) Catalog: Parts: Plate, Round  60474  Plate, Round 4 x 4 with Hole Catalog: Parts: Plate, Round