Image Item No. Description  73230  Technic, Brick 1 x 1 with Axle Hole Catalog: Parts: Technic, Brick  67446  Technic, Brick 2 x 4 x 1 1/3 with Axle Holes and 2 x 2 Cutout Catalog: Parts: Technic, Brick  73109  Technic, Brick Modified 1 x 2 with Hole and 1 x 2 Plate Catalog: Parts: Technic, Brick