Oasis 4.5-inch Floral Foam Sphere - (2) Pack Oasis Floral Foam Spheres are made of OASIS Deluxe Floral Foam, allowing them to securely hold the thickest of stems Oasis Floral Foam Spheres are intended for use with fresh flowers, and must be soaked in water prior to use Perfect for creating pomanders, kissing balls, topiaries, centerpieces, and many other creative applications Oasis Floral Foam is infused with Floralife Maxlife Technology to preserve the integrity of your flowers and increase the lifespan of your arrangement