LEGO 21123 Building Instructions

To ensure correct assembly, carefully follow the step-by-step instructions provided in the manual. Each step illustrates which pieces to use and how they fit together. Double-check connections to ensure they are snug and secure.
If you find a piece missing, contact LEGO customer service with the set number and the specific missing piece. They can usually send a replacement. Alternatively, check LEGO's website for replacement parts.
Review each step of the instruction manual to ensure all pieces are correctly placed. Check for misplaced or omitted pieces, and ensure all connections are tight. It helps to compare your model with the illustrations at each step.
Yes, LEGO pieces can be washed. It's best to wash them by hand using warm water and mild soap. Avoid using a dishwasher or washing machine, as high temperatures and abrasive detergents can damage the pieces.
Ensure the surface is clean and dry before applying decals. Press them firmly to avoid air bubbles. Avoid excessive handling and keep the model out of direct sunlight to prevent fading.
Sort the pieces by color and size before starting assembly. This makes it easier to find the pieces you need. Use small containers or trays to keep them organized.
Ensure all pieces are firmly connected and no pieces are loose. Handle the model gently and consider displaying it in a location where it won't be disturbed.
You can download a PDF version of the instructions from the LEGO website. Search for the set number 21123 to find the correct manual.
Ensure small pieces are kept away from young children to prevent choking hazards. Build on a stable surface to avoid accidental drops or spills.
You can add creativity by integrating pieces from other LEGO sets. Consider purchasing additional bricks from LEGO stores or online to customize your model further.