Part:4730
The The 2X2 Pin Brick is a common brick for Technic sets. These only have one pin that can attach to any hole. Almost all colours are accessable, but the most common are black and blue.
The The 2X2 Pin Brick is a common brick for Technic sets. These only have one pin that can attach to any hole. Almost all colours are accessable, but the most common are black and blue.