Early Structures (9660-1) is a Duplo and Explore LEGO set released in 1997 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.
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Release year
1997 (29 years ago — may be retired)
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Catalog scale
126 parts listed · 37 inventory lines tracked
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Minifigures
No minifigs in inventory (brick-only or Technic set)
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~338 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
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Market value
No estimate on BrickID yet
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Parts in this set
37 parts · updating…
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Activity Card, Set 9660-1, Card 1 - Green Creaturecardupn0083pr0001 · ×1 · [No Color/Any Color] -
Activity Card, Set 9660-1, Card 10 - Spinnercardupn0083pr0010 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 11 - Goalcardupn0083pr0011 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 12 - Seesawcardupn0083pr0012 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 13/14 - Bridge & Viaductcardupn0083pr0013 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 15/16 - Caterpillar & Balance Towercardupn0083pr0014 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 2 - Falling Towerscardupn0083pr0002 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 3 - Dangling Bunnycardupn0083pr0003 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 4 - Wallscardupn0083pr0004 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 5 - Balancing Cranecardupn0083pr0005 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 6 - Tablecardupn0083pr0006 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 7 - Book Endscardupn0083pr0007 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 8 - Winches and Cranecardupn0083pr0008 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Card 9 - Bridgecardupn0083pr0009 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Parts Inventorycardupn0083pr0015 · ×1 · [No Color/Any Color]
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Activity Card, Set 9660-1, Teacher Notescardupn0083pr0016 · ×1 · [No Color/Any Color]
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Duplo 2 x 2 x 2 Figure Brick, Rounded Bangs, Red Hair, Yellow Bow Print2327c02pr0001 · ×1 · Blue -
Duplo 2 x 2 x 2 Figure Brick, Spiky Bangs, Red Hair, Suspenders, Freckle Nose Print2327c01pr0010 · ×1 · Blue -
Duplo Brick 2 x 23437 · ×9 · Red -
Duplo Brick 2 x 23437 · ×9 · Yellow -
Duplo Brick 2 x 23437 · ×18 · Green -
Duplo Brick 2 x 3 with Curved Top2302 · ×2 · Red -
Duplo Brick 2 x 43011 · ×9 · Red -
Duplo Brick 2 x 43011 · ×9 · Yellow -
Duplo Brick 2 x 43011 · ×18 · Green -
Duplo Brick 2 x 4 x 2 Rounded Ends with Large Centered Eyes print4198pr9981 · ×1 · Yellow -
Duplo Brick 2 x 84199 · ×4 · Green -
Duplo Brick 2 x 84199 · ×2 · Red -
![Duplo Plate 2 x 4 x 1/2 with 4 Center Studs [Thick]](https://cdn.rebrickable.com/media/parts/elements/641324.jpg)
Duplo Plate 2 x 4 x 1/2 with 4 Center Studs [Thick]6413 · ×4 · Yellow -
Duplo Plate 8 x 166490 · ×1 · Red -
Duplo Technic Axle 66522 · ×2 · Light Gray -
Duplo Technic Brick 2 x 4 with 3 Holes6517 · ×4 · Red -
Duplo Technic Wedge Belt Wheel6527 · ×4 · Yellow -
Duplo Tile 2 x 26309 · ×4 · White -
Duplo Toolo Brick 2 x 2 with Angled Bracket with Forks and 2 Screws6284c01 · ×2 · Red -
Duplo Winch Drum, Yellow Hook Short with Cross Bar, String4653c02 · ×3 · Red -
Duplo Winch Stand4654 · ×3 · Yellow