Green Turbo Shells Perfect for Mounting Tillandsia. Approximately 1"-2". These work great for tillandsia/air plant pots/planters. Also great for crafts and weddings. Small bulbosa, neglecta, ionantha, and more will fit in these shells. Approximately 1-2" long with a 1/2"-1" opening. *listing is for one shell, plants, wood, stones not included. Sizes are approximate-these are natural products and no 2 are exactly the same