OASIS Netted Floral Foam Spheres are made of OASIS Deluxe Floral Foam, allowing them to securely hold the thickest of stems. Made in the USA. OASIS Netted Floral Foam Spheres are intended for use with fresh flowers, and must be soaked in water prior to use. OASIS Floral Foam DEGRADES in 567 days in an anaerobic environment (landfill). (ASTM D5511) OASIS Floral Foam DEGRADES in 567 days in an anaerobic environment (landfill). (ASTM D5511) OASIS Floral Foam is infused with Floralife Maxlife Preservative to preserve the integrity of your flowers and increase the lifespan of your arrangement These pre cut spheres are surrounded by a secure, green plastic netting and made of OASIS Deluxe Floral Foam and infused with patented Floralife Maxlife Technology to securely hold the thickest of stems. Perfect for topiaries, centerpieces, pomanders, kissing balls, holidays, and other creative applications.