FLORICEL Premium Fresh Floral Foam, engineered to help extend the life of your fresh floral flowers. Supports stems of all widths and sturdiness. Individual Bricks Measure 9"L x 4"W x 3"H, 48 Pieces per Case. Water absorption tested to absorb over 1.7L per block, ensuring longer lasting blooms. That is over 45 times in absorption over its dry weight! Engineered to a 6.4 PH level, ideal neutrality for cut flower longevity. Bricks are scored into thirds and half. making it easy to cut to the dimensions you need. Allow foam to fully submerge by itself, when placed over water. Do not force down, or put directly under a flow of water. Doing this will result in uneven absorption.