Medium Density Standard - Perfect for everyday designs with roses, carnations, poms, liatris, etc.;Each 9 x 4 x 3 brick is scored at 1/2 and 1/3 for accurate cutting and less waste;Unique cell structure closely resembles the natural cell structure of a plant stem and continually releases water to the stem for longer flower life;Maxlife Standard Oasisﾃつｮ Foam keeps flowers fresh up to 50 percent longer than any other floral foam;Case of 24 bricks