
Summer Heart Box is a subtheme of Friends introduced in 2019 and currently consists of 5 sets. All sets were released in 2019. As of today, the average annual growth of sets in Friends Summer Heart Box is approximately 4.7% per year.
The LEGO Friends Summer Heart Box subtheme is a 2019 follow-up to the original Heart Box line, packaging summer-themed mini scenes into portable heart-shaped cases for each main character. The collection includes 41384 Andrea's Summer Heart Box, 41385 Emma's Summer Heart Box, 41386 Stephanie's Summer Heart Box, 41387 Olivia's Summer Heart Box, and 41388 Mia's Summer Heart Box, each featuring beach, pool, or vacation-themed accessories tailored to the character.