How many pieces does the Heart Box (10909) have?

The set has 80 large Duplo pieces, including 39 unique shapes and colours.

Does this set come with build instructions for one model?

No, the Heart Box is designed for open-ended stacking and sorting rather than a single fixed model.

Will the pieces work with other Duplo sets?

Yes, all Duplo bricks are compatible with each other, so the pieces mix freely with other Duplo sets.

Basic Set

Heart Box

The Heart Box is a Duplo basics set aimed at the youngest builders, built around 80 large, heart-shaped pieces rather than one finished model. There's no set instruction for a single result here; the focus is on stacking, sorting and open-ended play, and the set doesn't include minifigures in the usual sense.

Set number: 10909
Year: 2020
Pieces: 80
Minifigures: 0
Theme: Basic Set
Different parts: 39

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 39

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Description

Sized for small hands

Every one of the 80 pieces follows the oversized Duplo format, which makes them easy for toddlers to grip, stack and pull apart again. Several elements are shaped like hearts and can be stacked into towers, laid out in rows or combined in whatever way a child chooses. There's no fixed layout to follow, so the box works more as an open-ended toy than a model kit with one correct outcome, and there's no wrong way to arrange the pieces.

A colour palette built for early learning

White, medium azure, yellow and red make up a clear, high-contrast palette that lends itself to early sorting and colour-naming activities. Of the 80 pieces, 39 are unique shapes and colours, a fairly varied mix for a Duplo set of this size. The full parts list on this page shows every shape and colour individually, useful for parents checking the mix in advance or comparing it with Duplo sets already at home.

Open play over a single build

Unlike sets built around one finished model, the Heart Box hands over a collection of large basic shapes and lets the child decide what to do with them. That might mean towers, colour groups or simply loose play, while an adult nearby can introduce early vocabulary around colour, shape and size. It suits the earliest stage of building, well before following step-by-step instructions, when handling and exploring pieces matters more than reaching a finished result.

Works alongside other Duplo sets

Because all Duplo bricks share the same connection system, pieces from the Heart Box mix freely with any other Duplo set already at home. Adding it to an existing collection expands both the colour range and the variety of shapes available for play. The parts list on this page makes it easy to see exactly what's new and what overlaps with sets you already own, so the collection grows without buying duplicate pieces by accident.

FAQ

How many pieces does the Heart Box (10909) have?: The set has 80 large Duplo pieces, including 39 unique shapes and colours.
Does this set come with build instructions for one model?: No, the Heart Box is designed for open-ended stacking and sorting rather than a single fixed model.
Will the pieces work with other Duplo sets?: Yes, all Duplo bricks are compatible with each other, so the pieces mix freely with other Duplo sets.