Is this set still popular for kids?

Yes, this 2021 set is themed around LEGO Ninjago Legacy and includes fun activity books.

How many pieces does this specific Ninjago set contain?

This set, number 9781728235486-1, contains 4 pieces.

The theme is Activity Books with LEGO Parts from the Ninjago Legacy line.

Name: LEGO Ninjago Legacy: Gift Set Box (9781728235486-1)
Brand: LEGO

Activity Books with LEGO Parts

Activity Books with LEGO Parts · 2021

Theme · Activity Books with LEGO PartsPieces · 4Set Number · 9781728235486-1Year · 2021

Used

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New / Sealed

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Is this set still popular for kids?: Yes, this 2021 set is themed around LEGO Ninjago Legacy and includes fun activity books.
How many pieces does this specific Ninjago set contain?: This set, number 9781728235486-1, contains 4 pieces.
What is the theme of this LEGO product?: The theme is Activity Books with LEGO Parts from the Ninjago Legacy line.