 
            Unique parts in 43278-1: Mini Arendelle Castle & Elsa's Ice Palace
This set inventory has been obtained from LEGO Customer Services replacement parts page. It was retrieved on 3 October 2025 and contains 299 pieces.
Important note: We do not control this inventory and cannot currently make changes to it. Use it as a guide to the contents of the set, or to find out part numbers when requesting replacements.
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| Element | Image | Qty | Colour | Category | Design | Element name | Element in sets | Element introduced in | Design in sets | Design introduced in | 
|---|---|---|---|---|---|---|---|---|---|---|
| 6546602 |   | 6 | Aqua | Plates | 73832 | PLATE 8X4X2/3, 1/2 CIRCLE, CUT OUT | 1 | 2025 | 36 | 2021 | 
| 6566768 |   | 2 | Bright Reddish Violet | Buildings & Furniture | 79128 | FRAME 1X2X2 | 1 | 2025 | 312 | 2021 | 
| 6560541 |   | 1 | Dark Brown | Minifigure Parts | 88286 | MINI WIG NO. 9 | 1 | 2025 | 60 | 2010 | 
| 6585123 |   | 1 | Transparent | Minifigure Parts | 115701 | MINI HEAD, NO. 4782 | 1 | 2025 | 1 | 2025 | 
| 6537722 |   | 2 | Transparent Blue With Opalescence | Buildings & Furniture | 7323 | WALL 2X8X4, 1/2 CIRCLE, W/ CUTOUT, NO. 1 | 1 | 2025 | 7 | 2025 |