Ron van der Kolk on Twitter: "6 identical 2x4 LEGO bricks, you can combine in 915.103.765 unique ways. Each guest receives a unique combination at LEGO House. #LEGO https://t.co/YFzzk0dEzU" / Twitter
Brick 2 x 4 : Part 3001 | BrickLink
Lego Spare Parts Brick 2x4 (Light Bluish Gray)
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LEGO 10pcs NEW Black 2x4 Brick Bulk Lot 3001 300126 | eBay
28x LEGO Dark Bluish Grey 2x3 Brick P/N 3002 NEW (B01) | eBay
LEGO 2x4 Dark Bluish Grey Gray Brick Lot of 10 #3001 NEW 2 x 4 Star Wars Color | eBay
2x4 Brick 25 Pack Genuine LEGO® - Etsy
LEGO BRICKS 100 x DARK GREY 2x4 Pin - From Brand New Sets Sent in a Clear Sealed 5060579700256 | eBay
LEGO White Brick 2 x 4 (3001) | Brick Owl - LEGO Marketplace