Technic, Brick 4 x 6 Open Center with 2 Fixed Rotatable Friction Pins on End

Technic, Brick 1 x 1 with Axle Hole

Technic, Brick 2 x 4 x 1 1/3 with Axle Holes and 2 x 2 Cutout

Turntable 2 x 2 x 2 Side Facing Locking

Technic, Brick 1 x 3 with Holes

Technic, Brick Modified 2 x 2 with Pin Hole, Rotation Joint Ball Half Horizontal, and Rotation Joint Socket

Technic, Brick 4 x 4 Open Center

Technic, Brick Modified 2 x 3 with Pin Holes, Rotation Joint Ball Half Vertical, and Rotation Joint Socket

Technic, Brick Modified 2 x 3 with Pin Holes, Rotation Joint Ball Half Horizontal, and Rotation Joint Socket