Guides and tips from the CrocoBricks team
LEGO® guides: buying, spotting fakes, cleaning and sorting
Everything we get asked in the shop, written down once and properly. Written by people who handle these bricks every day.
trains
1 article
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TipsVintage LEGO® Trains Explained: 4.5V, 12V or 9V? How to Identify Your System Found an old LEGO® train in the attic? Learn how to tell 4.5V, 12V and 9V apart by... October 9, 2026 6min Read more
