The LEGO 2x4 50th Anniversary Limited Edition Gold Brick 2005 #3001 is a special collectible piece made by LEGO to commemorate their 50th anniversary. This unique brick is a single 2x4 size, but crafted from durable plastic in a luxurious gold color. As part of the LEGO building toys line, this limited edition piece is a must-have for fans and collectors of LEGO bricks looking to add a special touch to their collection.