LesDiy
Mocsage Mech Combat Walker Building Blocks
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MOC-87360 Shunter Engine V60 of the Deutsche Reichsbahn Building Blocks
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MOC-89126 4014 Big Boy | Version 2 Building Blocks
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LesDiy
MOC-170057 Coaches of the Harzer Schmalspurbahnen HSB Building Blocks
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MOC-180032 Diesel Engine EMD GP40 of Union Pacific Railroad Building Blocks
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Stackable Container Train DIY Assembly Toy Building Blocks
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MOC-202248 Santa Fe Super Chief Car Set 1 Building Blocks
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MOC-212207 Electric Locomotive BR212/243 - Prototype BR212 001 White Lady Building Blocks
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MOC-56793 60s collection - 4 models - scale 1:27 Building Blocks
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MOC-81894 Lotus 99T - scale 1:8 Building Blocks
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MOC-43749 Ferrari 126C2 - no RC - scale 1:8 Building Blocks
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1/35 Scale B-1 Lancer Bomber Military Theme Building Blocks
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Fully Armed AV-8B+ Harrier Building Blocks Building Blocks
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Q1: What should you check when you receive new building blocks?

New Building Blocks Checklist: Ensure Quality & SafetyWhen you receive new building blocks, it’s important to inspect them carefully to avoid missing pieces, damaged parts, or safety risks. Follow this checklist to guarantee a smooth and enjoyable building experience!
1. Inspect the Packaging & ContentsCheck for damage – Look for crushed or torn boxes during shipping.Verify the contents – Ensure all bricks, and accessories match the product description.
2. Examine Block Quality & CompatibilityMaterial safety – Avoid blocks with sharp edges or strong chemical smells.Color & print consistency – Look for fading, misprints, or scratches.Brick clutch power – Test if pieces connect and separate smoothly.Compatibility – If mixing sets, check if brick sizes and connectors align.
3. Check for Missing or Defective PartsCount key pieces – Compare with the instruction manual’s parts list.Test electronic parts – If your set includes motors, lights, or sensors, ensure they function.Look for defects – Warped, cracked, or malformed bricks should be replaced.
4. Review Safety & CertificationsAge-appropriate labeling – Ensure blocks are safe for the intended user (e.g., 3+, 6+, 12+).Safety certifications – Look for CE, ASTM, or ISO marks for child safety compliance.Small parts warning – Keep tiny pieces away from toddlers to prevent choking hazards.
5. Keep Documentation for SupportSave the manual – Digital or printed instructions are essential for assembly.Contact customer service – If pieces are missing, check the seller’s return or replacement policy.
Final Tip: Store Blocks Properly!Keep bricks in labeled containers or original packaging to prevent loss and make rebuilding easier.If your item arrives with any issues(e.g., shipping damage or missing parts) and please contact the LesDiy support team at lesdiylt@gmail.com.
Q2: Does this product come with an instruction manual?
There is a difference between the instruction manuals for moc and mocsage. If you purchased moc, the instruction manual is on the product packaging box; simply scan the QR code to view it. If you purchased mocsage, the product packaging box contains a paper instruction manual.
Q3: How long does it take for the product to be delivered?
Generally, the product will be delivered within one month, except in cases where the product has many parts or unforeseeable circumstances arise.
Q4: What brand of parts does the product use?

All parts used in our products are from Gobricks and Zhegao.