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“Troll on the Loose” is LEGO® “Harry Potter” theme set number 4712. Released in 2002, it has 72 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 32 types
Color split (most first)
Light Gray×23
Black×18
Brown×6
White×5
Sand Green×4
Dark Gray×4
Trans-Neon Orange×2
Orange×1
Main parts (most used first)
3004 Brick 1 x 2
Black · ×10
3005 Brick 1 x 1
Light Gray · ×6
3004 Brick 1 x 2
Light Gray · ×4
4865a Panel 1 x 2 x 1 [Square Corners]
Dark Gray · ×3
2357 Brick 2 x 2 Corner
Light Gray · ×2
2454a Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges
Light Gray · ×2
3005 Brick 1 x 1
Black · ×2
3005 Brick 1 x 1
Brown · ×2
3040b Slope 45° 2 x 1 with Bottom Pin
Sand Green · ×2
3307 Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside
Light Gray · ×2
3455 Brick Arch 1 x 6
Black · ×2
3794a Plate Special 1 x 2 with 1 Stud without Groove (Jumper)
Black · ×2
3937 Hinge Brick 1 x 2 Base
White · ×2
3938 Hinge Brick 1 x 2 Top Plate Thin
Light Gray · ×2
4589 Cone 1 x 1 [No Top Groove]
Sand Green · ×2
6126a Wave / Flame Rounded with Base Pegs
Trans-Neon Orange · ×2
30046 Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top
Black · ×1
3021 Plate 2 x 3
Brown · ×1
30374 Bar 4L (Lightsaber Blade / Wand)
Light Gray · ×1
30374 Bar 4L (Lightsaber Blade / Wand)
Brown · ×1
3069b Tile 1 x 2 with Groove
White · ×1
3456 Plate 6 x 14
Brown · ×1
3581 Brick Special 1 x 1 x 2 with Shutter Holder
Light Gray · ×1
3626bpr0068 Minifig Head Pumpkin, Jack O' Lantern Print [Blocked Open Stud]
Orange · ×1
More “Harry Potter” theme sets
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