Oasis Floral Foam Brick, Maxlife - 1 Pack Made with OASIS Floral Foam Maxlife with Enhanced Biodegradability, the only floral foam proven to provide flower life that lasts as long or longer than flowers in a vase of water. ASTM D5511 certified biodegradable 100 Percent within 567 days. Medium density foam - perfect for everyday designs with roses, carnations, poms, liatris, etc. Keeps flowers fresh up to 50 percent longer than any other floral foam. Each 9" x 4" x 3" brick is scored at 1/2 and 1/3 for accurate cutting and less waste.