In 22.5*10.5*7.5 cm/piece of floral foam quality standards: 1. An open-celled phenol foam that readily absorbs water and is used as a base for flower arrangements. 2.Color: green. 3.Density: 25KG/M³ 4.Water absorption time: ABT. 1 minute (60 secs) 5.Dry brick weight: 44g(+/- 3g) 6.Wet brick weight: 1900g (+/- 15g) 7.Water drainage / leakage: 0g 8.Cell Structure: Fine 9.Brown water: No 10.PH level: PH 5.8-6.5 11.Water retain period: 7 days & above (Depend on the local climate) Our company also have one floral foam factory , the factory's name is Hebei Huiya Floral Foam Special Equipment Manufacturing Co.,Ltd. So we can give you the good price and we can guarantee the quality of our floral foam . Wet floral foam for flower We are a professional enterprise of highly efficient and energy-saving equipment and technology, integrating research and development, production, marketing and service. ��������.��