Air Plant Terrarium with Blue Rocks, Moss and Starfish / 4" Round Glass Air plants are easy to care for, no soil required and water once a week. Complete kit includes everything to recreate this terrarium. Makes a great gift! Includes the following: 1- Glass round terrarium 4" with twine 1- Air plant (tillandsia) 1- Bag of blue rocks 1- Starfish -Chartreuse green reindeer moss 1- Detailed care sheet/terrarium assembly guide