Compared to other similar products, our floral foam block can absorb water quickly. Easy to use, just put these flower foam into water slightly and wait for one minute until it absorbed water fully. It can keep moisture of fresh flowers for a long time. Our floral foam blocks are characterized by wide application, which can be used for fresh and artificial flower arrangement, succulent plants, bouquets or other DIY craft flowers. It also can be used in a vases or flower basket. It is constructed of LDPE material. There are 5 different sizes for you to choose from. This product is perfectly suitable for home, household, dorm, garden, etc. Item Name: Flower Foam Block Material: LDPE Features: Super Soft, Highly Absorbent, Long Lasting Size Details: Size 8 cm, Diameter: 8cm/3.15"(Approx.) Size 12cm, Diameter: 12cm/4.72"(Approx.) Size 16cm, Diameter: 16.5cm/6.5"(Approx.) Size 18cm, Diameter: 18cm/7.09"(Approx.) Size 20cm, Diameter: 20cm/7.87"(Approx.) Height: 4cm/1.57"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Flower Foam Block