LEGO 720
Basic Building Set

LEGO 720 Basic Building Set box image
Set number
720
Theme
Basic
Pieces
339 pcs
Year
1985
Used & parts
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“Basic Building Set” is LEGO® “Basic” theme set number 720. Released in 1985, it has 339 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 123 types

Color split (most first)
Red×94
White×86
Blue×69
Light Gray×40
Black×19
Yellow×9
Trans-Clear×8
Trans-Yellow×4
Green×3
Trans-Red×2
Trans-Green×1
Main parts (most used first)
3005 Brick 1 x 1
White · ×16
3004 Brick 1 x 2
White · ×10
3460 Plate 1 x 8
Light Gray · ×8
3622 Brick 1 x 3
White · ×8
3004 Brick 1 x 2
Blue · ×6
3005 Brick 1 x 1
Blue · ×6
3009 Brick 1 x 6
Blue · ×6
3010 Brick 1 x 4
White · ×6
3062b Brick Round 1 x 1 Open Stud
Light Gray · ×6
3622 Brick 1 x 3
Blue · ×6
4445 Slope 45° 2 x 8
Red · ×6
3003a Brick 2 x 2 without Inside Ridges
White · ×5
3004 Brick 1 x 2
Red · ×4
3005 Brick 1 x 1
Trans-Clear · ×4
3005 Brick 1 x 1
Red · ×4
3009 Brick 1 x 6
White · ×4
3010 Brick 1 x 4
Blue · ×4
3020 Plate 2 x 4
Blue · ×4
3023 Plate 1 x 2
White · ×4
3023 Plate 1 x 2
Red · ×4
3037 Slope 45° 2 x 4
Red · ×4
3038 Slope 45° 2 x 3
Red · ×4
3039 Slope 45° 2 x 2
Red · ×4
3040b Slope 45° 2 x 1 with Bottom Pin
Red · ×4

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