Image Item No. Description By  73230  Technic, Brick 1 x 1 with Axle Hole Catalog: Parts: Technic, Brick 1  32064  Technic, Brick 1 x 2 with Axle Hole Catalog: Parts: Technic, Brick 3  3700  Technic, Brick 1 x 2 with Hole Catalog: Parts: Technic, Brick 3  3894  Technic, Brick 1 x 6 with Holes Catalog: Parts: Technic, Brick 1  92013  Technic, Brick Modified 2 x 2 with Ball Socket and Axle Hole - Straight Forks with Round Ends and Open Sides Catalog: Parts: Technic, Brick 1