The Multi series Soil Blockers are used standing upright. They are pushed into a wet soil mix, and when the handle is squeezed, out pop identical soil blocks. The Multi 6 Soil Blocker produces six 3″ cubes that are ready to receive large either seeds or the 3/4″ soil blocks from the Micro 20. Instead of circling the pot, roots grow to the end of the block, concentrating their root mass in the center. When transplanted, there is no root shock, and seedlings become quickly established in their new environment. Unit stands 78cm (30inches) tall.