Part 4729

The 2X2 Pin Brick is a slightly common brick for TECHNIC sets. These only have one pin that can attach to any hole. It was introduced in 1986. 
== Appearances ==
*Black (1)
*Blue (2)
*Red (8)
*White (11)
*Yellow(12)
== External Links ==
Category:Parts
Category:Parts introduced in 1986
Category:LEGO Digital Designer parts