How Long Does LEGO® Ariel & Flounder's Birthday Music Fun (30720) Take to Build?

A typical builder finishes LEGO® Ariel & Flounder's Birthday Music Fun (set 30720, 39 pieces) in about 5 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.