Great for commerial scale growing and anyone looking for making multiple 2" blocks efficiently from a standing position. This model and the Professional Floor 20 Blocker will accommodate Mini-Blocker inserts. Makes blocks that are 1 3/4" x 1 7/8" x 1 5/8" high. Includes standard dibbles that make small depressions in the tops of soil blocks for seeds. Experienced growers can make and plant up to 2,500 blocks per hour.