The Medium Enchanted Lanterns are built within a 1L or 750ml glass jar. Difference in size depends on jar style, but both are considered a 'medium'.
CUSTOM Medium Enchanted Lantern
Though the contents of the lanterns are epoxied down, it is still a glass jar and can break if dropped. Please take care and keep your lantern in a safe space, away from pets and water.
Lights are battery powered, and depending on availability they could be powered by two AA or 2 CR2032 batteries.