Heart Box

3 parts appear in only a few other sets

• Duplo Brick 2 x 2 x 1 1/2 with Curved Top, Boy with Cap PrintMedium Azurealso in 10918 Tow Truck (all Duplo)
• Duplo Brick 2 x 2 x 2 Curved Top with Eye with Teardrop Spot PrintYellowalso in 30673 My First Duck, 6614208 (all Duplo)
• Duplo Brick 2 x 4 Curved BottomDark Azurealso in 10991 Dream Playground, 10422 3in1 Space Shuttle Adventure (all Duplo)

9 parts are otherwise only found in Duplo sets

• Duplo Brick 2 x 2Coral · ×4
• Duplo Brick 2 x 2Light Aqua · ×2
• Duplo Brick 2 x 2Yellowish Green · ×2
• Duplo Brick 2 x 3 with Curved BottomLight Aqua · ×2
• Duplo Plate 2 x 4Coral · ×2
• and 4 more

8 existing moulds first came out in their colour in 2020, including in this set

• Duplo Brick 2 x 2Coral · ×4
• Duplo Brick 2 x 2Light Aqua · ×2
• Duplo Brick 2 x 3 with Curved BottomLight Aqua · ×2
• Duplo Plate 2 x 4Coral · ×2
• Duplo Brick 2 x 4Bright Light Yellow
• and 3 more