Sputnik, Purple, or Pink Urchins complete with Lonantha air plants.
The Pink and Purple Urchin shells measure about 1.5 inches wide and 1 inch tall and the Sputnik urchin is slightly larger and up to 2 inches wide and 1 inch tall. The Ionantha air plants are about 1.5 inches tall. No glue or filler needed. The air plants fit perfectly in these cute little shells.