LEGO 42686
Fun Indoor Playground

LEGO 42686 Fun Indoor Playground box image
Set number
42686
Theme
Friends
Pieces
668 pcs
Year
2026
Lowest new price¥8,366〜as of 7/30
Used & parts
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“Fun Indoor Playground” is LEGO® “Friends” theme set number 42686. Released in 2026, it has 668 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 269 types

Color split (most first)
White×129
Medium Azure×80
Lime×51
Light Bluish Gray×46
Orange×45
Yellow×43
Tan×31
Bright Light Yellow×24
Black×23
Red×22
Medium Lavender×17
Lavender×16
Main parts (most used first)
3386 Plate 1 x 1 x 2/3 Half Round with Side Stud
Tan · ×14
28192 Slope 45° 2 x 1 with 2/3 Inverted Cutout and no stud
White · ×12
3004 Brick 1 x 2
White · ×12
3005 Brick 1 x 1
White · ×10
37352 Brick Curved 1 x 2 x 1 No Studs
Medium Azure · ×10
20482 Tile Round 1 x 1 with Hollow Bar
Light Bluish Gray · ×8
3004 Brick 1 x 2
Medium Azure · ×8
3710 Plate 1 x 4
Orange · ×8
37352 Brick Curved 1 x 2 x 1 No Studs
Yellow · ×8
37352 Brick Curved 1 x 2 x 1 No Studs
Lime · ×8
6231 Panel 1 x 1 x 1 Corner
Tan · ×8
18674 Plate Special Round 2 x 2 with Center Stud (Jumper Plate)
Lavender · ×7
20482 Tile Round 1 x 1 with Hollow Bar
White · ×7
3004 Brick 1 x 2
Bright Light Orange · ×7
3069b Tile 1 x 2 with Groove
Medium Azure · ×7
3023 Plate 1 x 2
Orange · ×6
34816 Brick Special 1 x 2 with Vertical Closed Handle on Edge
Light Bluish Gray · ×6
4477 Plate 1 x 10
White · ×6
50950 Slope Curved 3 x 1 No Studs
White · ×6
54200 Slope 30° 1 x 1 x 2/3 (Cheese Slope)
Medium Lavender · ×6
5520 Tile Round 2 x 2 Half Circle
White · ×6
68013 Brick Round, Half 1 x 2
White · ×6
80543 Brick Arch 1 x 4 x 3
White · ×6
14769 Tile Round 2 x 2 with Bottom Stud Holder
Medium Azure · ×5

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