Technic Rotation Joint Ball Loop with Two Perpendicular Pins with Friction
Technic, Brick Modified 2 x 2 with Ball Receptacle Wide and Axle Hole
Technic, Brick Modified 2 x 2 with Pin Holes and 2 Rotation Joint Sockets
Technic, Brick Modified 2 x 2 with Pin Hole, Rotation Joint Socket
Technic, Brick Modified 2 x 2 with Pin Holes and Rotation Joint Ball Half (Vertical Side)
Hero Factory Arm / Leg with Ball Joint on Axle and Ball Socket
Hero Factory Arm / Leg with Ball Joint on Axle and Ball Socket and 2 Pin Holes