Easy to Use:The green foam bricks can be cut into any shape to fit various size container.Immerse foam block into water for several minutes until it absorbs water fully. Material:The florist foams are made of ,soft,odorless and ,easy to water to keep your cut flower hydrated and last . Floral Arrangement:The round floral foams are perfect for holding flowers in place and keeping and ,great floral arrangement supplies for flosist and flower lovers. Wide Application:Those wet floral foams are suitable for real and artificial flower arrangement,succulent plant dispaly,bouquets and table centerpiece in wedding,baby shower,prom and other events. Value Pack: 20pcs floral foam blocks are included,and each round foam measures 1.57 X 3.15 Inches.