How Long Does LEGO® Doctor Phosphorus (71020-18) Take to Build?
A typical builder finishes LEGO® Doctor Phosphorus (set 71020-18, 6 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.