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Early Structures Set LEGO set box
LEGO Set

Early Structures Set

9660-3

Released: 2008 · Parts: 126 · Theme: Duplo and Explore

Early Structures Set (9660-3) is a Duplo and Explore LEGO set released in 2008 with 126 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Duplo and Explore sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 37 unique part types.

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Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

  • Release year

    2008 (18 years ago — may be retired)

  • Catalog scale

    126 parts listed · 37 inventory lines tracked

  • Minifigures

    No minifigs in inventory (brick-only or Technic set)

  • Build manual

    No digital manual in our catalog — check the box tab or LEGO.com

  • Shipping weight (est.)

    ~348 g for parts inventory (excludes box/minifig packaging)

  • Before you buy used

    Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing

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Market value

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Parts in this set

37 parts · updating…