Citations › Citation ID: 69

C69. BOOK: Daniel Konstanski, The Secret Life of LEGO Bricks: The Inside Story of a Design Icon (Unbound, 2022), p. 139.

In 1985, a variant was approved that consisted of a 1x1 brick with studs on every face except the bottom – five in total – which led to the name 1x1 with studs on five sides. This was greenlit because the single axis one could build through the brick along, top to bottom, remained consistent with the LEGO System. Both the initial Erling element and its five-sided cousin immediately saw extensive use throughout the LEGO Group product lines.

1×1 Brick, Studs 4-Sides (Part 4733) was introduced in 1985, making it the second SNOT element.